Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 27 Researches
8.4
USERS' SCORE
Good
Based on 36 Reviews
8.9
Supplement Facts
Serving Size: 1 Spray (Approx. 0.41 ml)
Amount Per Serving
%DV
Vitamin B12(as Methylcobalamin from Saccharomyces cerevisiae)
500 mcg
20,833%
Certified Organic Food BlendOrganic Beet (root), Organic Carrot (root), Organic Spinach (leaf), Organic Broccoli (flower & stem), Organic Tomato (fruit), Organic Kale (leaf), Organic Cabbage (leaf), Organic Parsley (leaf), Organic Brussels Sprout (leaf), Organic Green Bell Pepper (fruit), Organic Cucumber (gourd), Organic Celery (stalk), Organic Garlic (bulb), Organic Ginger (root), Organic Onion (root), Organic Cauliflower (flower & stem), Organic Asparagus (flower & stem), Organic Strawberry (fruit), Organic Cherry (fruit), Organic Blackberry (fruit), Organic Blueberry (fruit), Organic Raspberry (fruit)
2 mg
+

Top Medical Research Studies

We explored the case of a 23-month-old boy suffering from severe pancytopenia linked to Imerslund-Gräsbeck syndrome, a rare condition caused by an inability to absorb vitamin B12. Upon diagnosis, the boy received vitamin B12 replacement therapy, which effectively addressed his symptoms and improved his health.

This case highlights the significance of early detection and treatment of IGS to avoid potential neurological damage. It's crucial to recognize this condition, even when neurological symptoms are absent, to provide timely care.
Read More
We focused on how oral vitamin B12 could help those with pernicious anemia, where absorption is usually impaired. Participants diagnosed with vitamin B12 deficiency due to this condition took a daily dose of 1000 μg of oral cyanocobalamin.

Over a year, an impressive 88.5% of them no longer showed deficiency after just one month, with significant improvements in vitamin B12 levels and related biological markers. Importantly, these benefits lasted throughout the study period.
Read More
We explored a rare condition called Transcobalamin deficiency, which hinders vitamin B12 transport in the body. This case involved a 2-year-old boy suffering from severe anemia and frequent infections.

After genetic tests revealed a specific mutation, we administered high doses of methylcobalamin. Remarkably, the child's health significantly improved, highlighting the importance of diagnosing and treating this deficiency early to avoid serious complications.
Read More

Most Useful Reviews

9.5
Convenient anaemia solution
I have a positive impression of these vitamins. The vitamin B12 spray format is convenient for children, avoiding injections or pills. As someone with low hemoglobin and a restricted diet, I find these vitamins helpful. No side effects, and after a month, my hair stopped falling out, and chronic fatigue disappeared.
Read More
9.5
Boosts energy levels
A very good form of vitamin B12. I take it for anaemia, and it works effectively. It’s pleasant tasting and well absorbed, providing a surge of energy.
Read More
9.5
Improved cognition
Saved me from pernicious anemia. I struggled to obtain injectable B-12 due to high prices and poor health insurance. My doctor's office no longer offers B-12 shots. I started experiencing severe memory problems and cognitive issues. After taking this B-12, I noticed improvement within three days, and now, weeks later, I feel much better. It has greatly boosted my energy and diminished my brain fog. I'm genuinely grateful for this product. Also, it tastes pleasant.
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 27 Researches
8.4
  • All Researches
We explored the case of a 23-month-old boy suffering from severe pancytopenia linked to Imerslund-Gräsbeck syndrome, a rare condition caused by an inability to absorb vitamin B12. Upon diagnosis, the boy received vitamin B12 replacement therapy, which effectively addressed his symptoms and improved his health.

This case highlights the significance of early detection and treatment of IGS to avoid potential neurological damage. It's crucial to recognize this condition, even when neurological symptoms are absent, to provide timely care.
Read More
We focused on how oral vitamin B12 could help those with pernicious anemia, where absorption is usually impaired. Participants diagnosed with vitamin B12 deficiency due to this condition took a daily dose of 1000 μg of oral cyanocobalamin.

Over a year, an impressive 88.5% of them no longer showed deficiency after just one month, with significant improvements in vitamin B12 levels and related biological markers. Importantly, these benefits lasted throughout the study period.
Read More
9.5
Vitamin B12 aids anemia recovery
We investigated how vitamin B12 treatment plays a role in addressing anemia in a young adolescent with complex health issues, including severe anemia, joint problems, and neurological symptoms. This individual presented with a deficiency in vitamin B12, alongside other autoimmune conditions, leading to a diagnosis of subacute combined degeneration of the spinal cord.

The patient's treatment regimen included high-dose intravenous methylprednisolone, immunoglobulin therapy, oral naproxen, and vitamin B12 supplementation, among others. We observed that the introduction of vitamin B12 into her treatment plan contributed to combating her anemia effectively. The combination of therapies, especially with vitamin B12, significantly improved her overall health and restored her quality of life.

Our findings highlight the importance of early diagnosis and prompt treatment in patients with complex autoimmune issues. Specifically, vitamin B12 emerges as a critical component in managing anemia related to such conditions. While the study is anecdotal, it reinforces the idea that vitamin B12 can be beneficial in improving anemia outcomes in similarly affected patients.
Read More
9
Oral B12 therapy effective in anemia
We explored a case of a 3-year-old girl diagnosed with Imerslund-Gräsbeck syndrome, a condition that causes vitamin B12 malabsorption and leads to anemia. After identifying novel mutations in the AMN gene, we initiated long-term oral vitamin B12 therapy.

Following treatment, her blood tests showed consistent improvement, indicating that oral B12 replacement can be an effective management strategy, especially for patients who can’t tolerate injections. This case underscores the importance of genetic testing for accurate diagnoses.
Read More
We explored a rare condition called Transcobalamin deficiency, which hinders vitamin B12 transport in the body. This case involved a 2-year-old boy suffering from severe anemia and frequent infections.

After genetic tests revealed a specific mutation, we administered high doses of methylcobalamin. Remarkably, the child's health significantly improved, highlighting the importance of diagnosing and treating this deficiency early to avoid serious complications.
Read More

User Reviews

USERS' SCORE
Good
Based on 36 Reviews
8.9
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Convenient anaemia solution
I have a positive impression of these vitamins. The vitamin B12 spray format is convenient for children, avoiding injections or pills. As someone with low hemoglobin and a restricted diet, I find these vitamins helpful. No side effects, and after a month, my hair stopped falling out, and chronic fatigue disappeared.
Read More
9.5
Boosts energy levels
A very good form of vitamin B12. I take it for anaemia, and it works effectively. It’s pleasant tasting and well absorbed, providing a surge of energy.
Read More
9.5
Improved cognition
Saved me from pernicious anemia. I struggled to obtain injectable B-12 due to high prices and poor health insurance. My doctor's office no longer offers B-12 shots. I started experiencing severe memory problems and cognitive issues. After taking this B-12, I noticed improvement within three days, and now, weeks later, I feel much better. It has greatly boosted my energy and diminished my brain fog. I'm genuinely grateful for this product. Also, it tastes pleasant.
Read More
9.5
Child's anaemia improved
Recommended by a hematologist for my daughter and me, this vitamin is easy to use. The child readily accepts it, and it has improved our blood counts. It provides significant energy, making it essential for managing anaemia.
Read More
8.8
Noticeable energy boost
I purchased this for my child to prevent anaemia. The spray form allows for better absorption, and he enjoys the taste. After using it, he became more active, exhibiting significant energy improvements. We're continuing with it and noticing positive changes.
Read More

Frequently Asked Questions

Anemia is a medical condition characterized by a deficiency of red blood cells or hemoglobin in the blood, which can result in reduced oxygen flow to the body's organs. The most common type of anemia is iron-deficiency anemia, which occurs when the body does not have enough iron to produce adequate hemoglobin. Other types can arise from chronic diseases, genetic conditions, or a lack of certain vitamins such as B12 or folate. Symptoms often include fatigue, weakness, pale skin, and shortness of breath, particularly during physical activity.

Diagnosing anemia typically involves blood tests to measure levels of red blood cells, hemoglobin concentration, and other related factors. Treatment varies depending on the underlying cause but may include dietary changes, supplements, or medications. In some cases, more serious interventions may be necessary, such as blood transfusions or treatments for associated conditions. If you suspect you have anemia, it's essential to consult a healthcare professional for appropriate evaluation and management.

Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a crucial role in several vital functions in the human body. It is essential for red blood cell formation, neurological function, and DNA synthesis. Naturally occurring in animal products, the vitamin can be found in high concentrations in meat, fish, eggs, and dairy, making it particularly important for those following a vegetarian or vegan diet, as plant-based sources of B12 are limited and often require supplementation.

A deficiency in vitamin B12 can lead to serious health issues, including anemia, fatigue, memory problems, and nerve damage. Due to its significance, it's crucial for individuals, particularly those at risk of deficiency, to ensure adequate intake through diet or supplementation. For most adults, the recommended daily allowance (RDA) is around 2.4 micrograms, though pregnant or breastfeeding women may require higher amounts. If you're considering B12 supplements, it's advisable to consult with a healthcare provider to determine the best option for your specific needs and health status.

B12 plays a crucial role in the formation of red blood cells, and a deficiency can lead to a specific type of anemia called pernicious anemia. In this condition, the body lacks sufficient vitamin B12, which is essential for producing healthy red blood cells, resulting in a decreased ability to transport oxygen throughout the body. Symptoms of this type of anemia can include fatigue, weakness, and even neurological issues if left untreated.

Supplementing with B12 can alleviate these symptoms and correct the deficiency, making it an effective part of the treatment plan for those diagnosed with pernicious anemia. However, it's essential to consult with a healthcare professional before starting supplementation, as the specific needs can vary significantly between individuals. They may recommend dietary adjustments or injections depending on the severity of the deficiency and the underlying causes. In sum, while B12 can certainly help with certain types of anemia, addressing the root cause with professional guidance is key for effective treatment.

Based on user reviews, it typically takes anywhere from a week and a half to two months to see beneficial results when using vitamin B12 supplements for anemia. For instance, one user reported noticing positive effects in just a week and a half ((Read Review)), while another mentioned that their hemoglobin levels normalized within two months ((Read Review)).

Users have emphasized the convenience and efficacy of the sublingual spray form of B12, stating that improved energy levels and enhanced overall health are common. For example, one reviewer who began taking the supplement noted significant improvements after two weeks ((Read Review)), and another experienced a positive change in general well-being about a month after starting the spray ((Read Review)). These timelines suggest that while individual results may vary, many users can expect to see changes within the first two months of supplementation.

This supplement, particularly vitamin B12, is increasingly recognized for its crucial role in addressing anemia, particularly in the context of deficiencies linked to pernicious anemia and other conditions. Several studies illustrate the positive outcomes of vitamin B12 treatment on anemia symptoms. For instance, a case review involving a patient with pernicious anemia who received parenteral B12 treatment demonstrated substantial neurological improvements and a reversal of symptoms related to the deficiency [1]. Additionally, another study highlighted the effectiveness of oral vitamin B12, which showed significant improvement in hemoglobin levels among individuals with this deficiency [10].

Moreover, the link between vitamin B12 deficiency and various anemia types is well established. Research shows that early detection and appropriate B12 supplementation can significantly improve outcomes, particularly in cases of megaloblastic anemia [21]. These findings emphasize the necessity for healthcare providers to consider vitamin B12 as a vital component in the diagnosis and treatment of anemia, particularly in populations with limited access to healthcare resources [17]. In sum, the scientific backing for vitamin B12 as a support for anemia is compelling, suggesting that it can be an effective element in addressing this condition when deficiencies are present.

Based on user reviews, many individuals have reported significant improvements in their symptoms after using vitamin B12 supplements, particularly in the form of a sublingual spray. Users have noted that conditions such as chronic fatigue and anemia exhibit dramatic changes after consistent use. For instance, one reviewer mentioned that their chronic fatigue disappeared and hair loss ceased after a month of supplementation ((Read Review)). Another user remarked on a surge of energy and improvement in blood counts, which they found essential for managing anemia ((Read Review)).

Additionally, several users highlighted the convenience and taste of the spray, making it easier for both adults and children to take. Parents of children using the product have reported notable increases in activity and overall well-being ((Read Review)). Overall, while individual results can vary, many users expect to experience benefits such as enhanced energy levels, improved hemoglobin levels, and a reduction in symptoms related to anemia within a relatively short timeframe.

Users have reported varied experiences when combining this vitamin B12 supplement with other supplements to handle anemia. Some individuals specifically mentioned that it should not be taken with iron as their healthcare provider advised against it, indicating that this combination could hinder the efficacy of either supplement ((Read Review)). This suggestion seems to resonate well with those who have had difficulties with anemia despite normal hemoglobin levels, asserting the importance of timing and separate supplementation strategies.

Conversely, several users highlighted that B12 supplementation can assist with the absorption of iron, making it an ideal companion in anemia treatment for some. For instance, one reviewer noted that this B12 spray not only aided in energy levels but also improved metabolism and iron absorption for those experiencing anemia ((Read Review)). Overall, while some users advocate for caution when combining supplements, others celebrate the synergistic potential of B12 with iron for comprehensive anemia management.

The optimal dose of Vitamin B12 for treating anemia can vary depending on the severity of the deficiency and the method of administration. Research suggests that for severe cases, particularly associated with pernicious anemia, higher doses may be necessary. For instance, parenteral (injection) therapy with methylcobalamin has been shown to significantly improve anemia symptoms, with effective treatment often requiring doses of 1000 μg or more [10]. Additionally, another study indicated that oral supplementation with doses of 1000 μg daily resulted in substantial improvements for many patients [10].

For those who are less severely affected, lower doses can be effective; supplements containing around 20 µg daily are generally considered safe and may suffice for mild deficiencies. However, in cases where more critical intervention is needed, doses could go up to 200 µg per day or more to effectively address symptoms of anemia [19]. It’s crucial for individuals experiencing symptoms of anemia to consult with a healthcare provider for appropriate testing and dosage adjustments tailored to their specific needs.

8.8
Pleasant flavour
I've been a vegetarian for 1.5 years and experienced a vitamin B12 deficiency resembling anaemia. This sublingual spray has the best flavour I've tried, and I noticed positive effects in just a week and a half.
9.5
Raised haemoglobin
Raised my haemoglobin after being diagnosed with anaemia. It normalised in two months and is comfortable to take with a pleasant taste.
9.5
Family-friendly solution
As a vegetarian family, this is the perfect solution for our severe B12 deficiency and haemoglobin levels. After a month, my levels improved. This spray is essential for healthy nervous system functioning.
9.5
Convenient anaemia solution
I have a positive impression of these vitamins. The vitamin B12 spray format is convenient for children, avoiding injections or pills. As someone with low hemoglobin and a restricted diet, I find these vitamins helpful. No side effects, and after a month, my hair stopped falling out, and chronic fatigue disappeared.
9.5
Child's anaemia improved
Recommended by a hematologist for my daughter and me, this vitamin is easy to use. The child readily accepts it, and it has improved our blood counts. It provides significant energy, making it essential for managing anaemia.
8.8
Noticeable energy boost
I purchased this for my child to prevent anaemia. The spray form allows for better absorption, and he enjoys the taste. After using it, he became more active, exhibiting significant energy improvements. We're continuing with it and noticing positive changes.
8.8
Supports iron absorption
My doctor recommended this vitamin. It's essential to take it after meals, without combining it with iron. Despite having normal hemoglobin, I suffered from anaemia due to iron not reaching the cells. I'm experiencing improvements in my health, and the fruity taste makes it enjoyable.
9.5
Boosts absorption
This natural B12 spray is the best as it’s absorbed effectively. It helps improve metabolism and energy levels while also assisting iron absorption for those with anaemia. My son enjoys the berry taste.
This case explores the journey of a 40-year-old woman who suffered from various nonspecific symptoms, mistakenly attributed to other health issues, for ten years. Her vitamin B12 levels were critically low, ultimately diagnosed as pernicious anemia.

After starting parenteral B12 treatment, we observed significant neurological improvements, underscoring how vital it is to recognize vitamin B12 deficiency as a potential cause of anemia, even when classic symptoms aren't present. This case reminds us to maintain a broad perspective for accurate diagnosis.
We focused on how oral vitamin B12 could help those with pernicious anemia, where absorption is usually impaired. Participants diagnosed with vitamin B12 deficiency due to this condition took a daily dose of 1000 μg of oral cyanocobalamin.

Over a year, an impressive 88.5% of them no longer showed deficiency after just one month, with significant improvements in vitamin B12 levels and related biological markers. Importantly, these benefits lasted throughout the study period.
We examined cases of megaloblastic anemia (MA) in children, focusing particularly on the impact of vitamin B12 treatment. Over a span of 42 years, we gathered data on 20 children diagnosed with this rare condition, which primarily arises from deficiencies in vitamin B12 and folic acid.

During our investigation, we found that vitamin B12 related issues played a significant role in various cases. For instance, some children experienced vitamin B12 deficiency due to maternal factors or malnutrition, while others had more specific conditions contributing to their deficiency. Notably, we observed a macrocytic anemia in nearly all cases, underlining the importance of identifying and treating vitamin B12 deficiencies promptly.

Our treatment approaches included not just supplementation with vitamin B12 but also addressing other underlying causes of anemia. While the majority of cases showed a favorable response, we noted some serious outcomes, underscoring that the effectiveness of vitamin B12 treatment can vary greatly depending on the individual situation.

In conclusion, this study highlights the critical role that early diagnosis and targeted therapeutic measures play in improving the long-term neurological outcomes for children suffering from megaloblastic anemia, particularly those with vitamin B12 deficiency.
We explored the intriguing case of a 51-year-old man in Western Uganda who experienced lower limb weakness linked to pernicious anemia, a condition caused by vitamin B12 deficiency. His journey illustrates the importance of recognizing the signs of this often-overlooked autoimmune disease.

Initially presenting with macrocytic anemia, our patient had a history of similar symptoms seven years prior, which were treated for vitamin B12 deficiency. This time, additional tests confirmed that pernicious anemia was at play, allowing for targeted treatment.

After starting parenteral methylcobalamin therapy, he showed significant improvement in his symptoms. This case underscores that vitamin B12 is crucial not just for red blood cell production but also for neurological health, emphasizing the need for increased awareness and diagnosis of vitamin B12 deficiencies in resource-limited settings.
9
We explored how vitamin B12 affects anemia, specifically through its role in correcting deficiencies. The research analyzes oral B12 intake and its absorption, particularly in individuals showing signs of deficiency.

There’s a clear relationship between the amount of B12 consumed and the body’s response. Supplements offering up to 20 µg of B12 daily are deemed safe and unlikely to trigger side effects.

For those severely affected, higher dosages—like 50 µg—may help stabilize abnormal markers in the blood, while foods designed for medical purposes can contain up to 150 µg.

However, anything beyond 200 µg per day should be treated as a drug, as it can effectively address anemia and related symptoms. Importantly, for individuals diagnosed with deficiency, proper medical treatment remains essential, leaning towards higher doses of B12.

References

  1. Mesgarankarimi A, Rezapour M, Tabrizi N. A long-standing undiagnosed case of vitamin B12 deficiency: a case report. J Med Case Rep. 2025;19:151. doi:10.1186/s13256-025-05149-7
  2. Upadhyay RP, Chowdhury R, Mundra S, Taneja S, Jacob M, et al. Comparative effectiveness of daily therapeutic supplementation with multiple micronutrients and iron-folic acid versus iron-folic acid alone in children with mild-to-moderate anaemia in rural India: an open-label, randomised controlled trial. Lancet Glob Health. 2025;13:e497. doi:10.1016/S2214-109X(24)00559-X
  3. Mswelo VE, David MM, Banturaki A, Munyambalu DK, Hassan HA, et al. Rural health challenges in Western Uganda: pernicious anemia masquerading as recurrent lower limb weakness-a case report. J Med Case Rep. 2025;19:60. doi:10.1186/s13256-025-05095-4
  4. Hirakata K, Ishii Y, Yoshida T, Tanaka F, Nakae Y. [A case of diagnosed pernicious anemia and subacute combined degeneration of the spinal cord with abnormally elevated serum vitamin B12]. Rinsho Shinkeigaku. 2025;65:120. doi:10.5692/clinicalneurol.cn-002023
  5. Zhang D, Liu S, Xi B, Zhu Y, Chen Y, et al. Imerslund-Gräsbeck syndrome in a child with a novel compound heterozygous mutations in the AMN gene: a case report. Ital J Pediatr. 2024;50:191. doi:10.1186/s13052-024-01757-z
  6. Di Sario F, Piloni F, Gasparini F, Serpetti E, Bruschi B, et al. Severe pancytopenia at the presentation of Imerslund-Gräsbeck syndrome in a 23-month-old Italian boy. Ital J Pediatr. 2024;50:186. doi:10.1186/s13052-024-01759-x
  7. Shen M, Luo X, Wu C, Wang J, Wang Z, et al. Pernicious anemia is a common cause of cobalamin deficiency-caused megaloblastic anemia in Hainan, China. Hematology. 2024;29:2399375. doi:10.1080/16078454.2024.2399375
  8. Iqbal N, Meghani MA, Khalid W, Ansari AH, Ansari MUH, et al. Transcobalamin deficiency - a rare genetic defect in transportation of cobalamin; case report. Ann Hematol. 2024;103:3243. doi:10.1007/s00277-024-05878-7
  9. Song JH, Park SH, Cho M, Kim YM, Hyung WJ, et al. Proximal Gastrectomy Is Associated with Lower Incidence of Anemia and Vitamin B12 Deficiency Compared to Total Gastrectomy in Patients with Upper Gastric Cancer. Cancer Res Treat. 2025;57:174. doi:10.4143/crt.2024.319
  10. Lacombe V, Vinatier E, Roquin G, Copin MC, Delattre E, et al. Oral vitamin B12 supplementation in pernicious anemia: a prospective cohort study. Am J Clin Nutr. 2024;120:217. doi:10.1016/j.ajcnut.2024.05.019
  11. Chakrabarti S, Ajjampur SSR, Waddington HS, Kishore A, Nguyen PH, et al. Deworming and micronutrient status by community open defecation prevalence: An observational study using nationally representative data from India, 2016-2018. PLoS Med. 2024;21:e1004402. doi:10.1371/journal.pmed.1004402
  12. Sawada Y, Sakamoto K, Tsukamura A, Sawai C. Vitamin B12 deficiency-induced megaloblastic anemia in a pediatric patient with autism spectrum disorder with a chronically unbalanced diet. Int J Hematol. 2024;119:613. doi:10.1007/s12185-024-03759-3
  13. Chen Y, Pang Y, Wan H, Zhou X, Wan M, et al. Production of iron-enriched yeast and it's application in the treatment of iron-deficiency anemia. Biometals. 2024;37:1023. doi:10.1007/s10534-024-00592-3
  14. Tafazzoli K, Ghavami M, Khosravi-Darani K. Production of iron enriched Saccharomyces boulardii: impact of process variables. Sci Rep. 2024;14:4844. doi:10.1038/s41598-024-55433-7
  15. Zhang XG, Wang N, Ma GD, Liu ZY, Wei GX, et al. Preparation of S-iron-enriched yeast using siderophores and its effect on iron deficiency anemia in rats. Food Chem. 2021;365:130508. doi:10.1016/j.foodchem.2021.130508
  16. Zhang XG, Wei GX, Wang WN, Ma GD, Tang P, et al. Effects of Fe-YM1504 on iron deficiency anemia in rats. Food Funct. 2016;7:3184. doi:10.1039/c6fo00423g
  17. Mswelo VE, David MM, Banturaki A, Munyambalu DK, Hassan HA, et al. Rural health challenges in Western Uganda: pernicious anemia masquerading as recurrent lower limb weakness-a case report. J Med Case Rep. 2025;19:60. doi:10.1186/s13256-025-05095-4
  18. Sachdeva M, Purohit A, Malik M, Jain L, Pradhan P, et al. Comparison of Efficacy and Safety of Parenteral vs Oral Route of Vitamin B12 Supplementation for the Treatment of Vitamin B12 Deficiency Anemia in Children: A Systematic Review. Nutr Rev. 2025. doi:10.1093/nutrit/nuae227
  19. Obeid R, Geisel J, Pietrzik K, Andres E. A Framework to Guide Defining an Upper Threshold of Crystalline Vitamin B12 in Foods and Food Supplements. Curr Nutr Rep. 2025;14:32. doi:10.1007/s13668-025-00622-7
  20. Hirakata K, Ishii Y, Yoshida T, Tanaka F, Nakae Y. [A case of diagnosed pernicious anemia and subacute combined degeneration of the spinal cord with abnormally elevated serum vitamin B12]. Rinsho Shinkeigaku. 2025;65:120. doi:10.5692/clinicalneurol.cn-002023
  21. Belhaj R, Maaloul I, Kolsi R, Rekik T, Chabchoub I, et al. Study of clinical manifestations and etiologies of megaloblastic anemia in children. Transfus Clin Biol. 2025. doi:10.1016/j.tracli.2025.01.006
  22. Goncalves H, De Oliveira Simões F, Sá R, Fraga Campos B, Domingues RM, et al. Severe Symptomatic Anemia as a Rare Initial Manifestation of Type 3 Polyglandular Autoimmune Syndrome: A Case Report. Cureus. 2024;16:e75800. doi:10.7759/cureus.75800
  23. Moreira AP, Vasconcelos M, Costa E Silva T, Relvas C, Espírito Santo J. An Unusual Case of Hemolytic Anemia: A Case Report. Cureus. 2024;16:e75676. doi:10.7759/cureus.75676
  24. Lang C, Huang P, Gao J, Chen Y, He Z. Co-existence of autoimmune polyglandular syndrome type 3b and undifferentiated connective tissue disease with subacute combined degeneration of spinal cord in children: a case report and literature review. BMC Pediatr. 2024;24:817. doi:10.1186/s12887-024-05262-4
  25. Tavares Pereira J, Barbosa Barroso J, Azevedo A, Ribeiro A, Tonel C. Pseudo-Thrombotic Microangiopathy Secondary to Vitamin B12 Deficiency. Cureus. 2024;16:e73620. doi:10.7759/cureus.73620
  26. Jamil M, Nasser Z, Jamil D, Sheqwara JZ. Unmasking Vitamin B12 Deficiency Misdiagnosed as Myelodysplastic Syndrome. Case Rep Hematol. 2024;2024:3258227. doi:10.1155/2024/3258227
  27. Memon NM, Conti G, Brilli E, Tarantino G, Chaudhry MNA, et al. Comparative bioavailability study of supplemental oral Sucrosomial vs. oral conventional vitamin B12 in enhancing circulatory B12 levels in healthy deficient adults: a multicentre, double-blind randomized clinical trial. Front Nutr. 2024;11:1493593. doi:10.3389/fnut.2024.1493593
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