Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 6 Researches
7.5
USERS' SCORE
Good
Based on 36 Reviews
8.5
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
Zinc (elemental) (from 271 mg Zinc Picolinate)
50 mg
455%

Top Medical Research Studies

9
Zinc supplementation benefits MS models
We explored how dietary zinc levels influence spinal cord damage and gene expressions associated with Multiple Sclerosis (MS) using a cuprizone-induced rat model. The study included 46 adult male Wistar rats divided into five groups, with some receiving zinc supplementation while others followed a zinc-deficient diet.

After eight weeks of treatment, we found that the rats with MS symptoms showed elevated markers of tissue damage and inflammation, particularly in the groups that lacked zinc. Notably, those receiving zinc supplementation exhibited significantly reduced levels of harmful substances, bringing them back closer to control levels.

Our findings highlight zinc's protective effects in a model of MS, suggesting that incorporating zinc into treatment plans could help alleviate some symptoms associated with this autoimmune disorder. This is promising for future treatment strategies for those affected by MS.
Read More
9
Zinc intake benefits RA bone health
We aimed to understand how dietary zinc intake influences the risk of developing osteopenia and osteoporosis in patients with rheumatoid arthritis (RA). Our study relied on data collected from the National Health and Nutrition Examination Survey, spanning several years. Through careful analysis using univariate and multivariate logistic regression models, we were able to uncover significant associations between dietary zinc levels and bone health in this population.

What we found was encouraging: higher zinc intake appeared to lower the chances of these serious bone conditions among RA patients. Our research also went further by examining various factors such as age, body mass index (BMI), and pre-existing health issues like diabetes and hypertension. This comprehensive approach led us to conclude that adequate dietary zinc is crucial for maintaining bone health in individuals with RA, though we noted the need for more extensive long-term studies to corroborate these findings and delve deeper into the underlying mechanisms at play.
Read More
We identified an important link between zinc transport and autoimmune disorders, specifically focusing on the protein SLC39A10 and its role in T cells. Through our study, we discovered that two specific genetic variations in the SLC39A10 gene are associated with inflammatory bowel disease (IBD). To further explore this connection, we created genetically modified mice with a targeted deletion of the Slc39a10 gene in T cells.

Our findings revealed that the loss of SLC39A10 significantly protects against the progression of both IBD and experimental autoimmune encephalomyelitis (EAE). Notably, we also observed that the absence of this transporter led to increased cell death, independent of common pathways usually associated with apoptosis. This indicates that SLC39A10 plays a crucial role in maintaining the health of T cells by facilitating zinc import, which is essential for DNA replication when T cells are activated.

Our research contributes to a deeper understanding of how zinc homeostasis impacts immune function. The insights gained from this study suggest that targeting zinc transport could present new therapeutic options for managing T cell-related autoimmune diseases.
Read More

Most Useful Reviews

9.5
Aids conception
I ordered zinc picolinate to improve my husband's sperm quality when we faced conceiving challenges. After three months of use with other vitamins, he had noticeable improvements. I recommend this supplement for those struggling with male-factor infertility; it worked for us when we wanted to conceive.
Read More
9.5
Eliminates skin spots
Two years ago, I developed unsightly spots on my hands, which my doctor advised treating with zinc. I found it incredibly effective; the spots disappeared and have not returned since.
Read More
9.5
Supports gut health
Picolinate is the least irritating form of zinc I've tried, especially beneficial for my autoimmune disorder. I also take it to strengthen my intestinal walls, as I suffer from leaky gut.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 6 Researches
7.5
  • All Researches
9
Zinc supplementation benefits MS models
We explored how dietary zinc levels influence spinal cord damage and gene expressions associated with Multiple Sclerosis (MS) using a cuprizone-induced rat model. The study included 46 adult male Wistar rats divided into five groups, with some receiving zinc supplementation while others followed a zinc-deficient diet.

After eight weeks of treatment, we found that the rats with MS symptoms showed elevated markers of tissue damage and inflammation, particularly in the groups that lacked zinc. Notably, those receiving zinc supplementation exhibited significantly reduced levels of harmful substances, bringing them back closer to control levels.

Our findings highlight zinc's protective effects in a model of MS, suggesting that incorporating zinc into treatment plans could help alleviate some symptoms associated with this autoimmune disorder. This is promising for future treatment strategies for those affected by MS.
Read More
9
Zinc intake benefits RA bone health
We aimed to understand how dietary zinc intake influences the risk of developing osteopenia and osteoporosis in patients with rheumatoid arthritis (RA). Our study relied on data collected from the National Health and Nutrition Examination Survey, spanning several years. Through careful analysis using univariate and multivariate logistic regression models, we were able to uncover significant associations between dietary zinc levels and bone health in this population.

What we found was encouraging: higher zinc intake appeared to lower the chances of these serious bone conditions among RA patients. Our research also went further by examining various factors such as age, body mass index (BMI), and pre-existing health issues like diabetes and hypertension. This comprehensive approach led us to conclude that adequate dietary zinc is crucial for maintaining bone health in individuals with RA, though we noted the need for more extensive long-term studies to corroborate these findings and delve deeper into the underlying mechanisms at play.
Read More
We identified an important link between zinc transport and autoimmune disorders, specifically focusing on the protein SLC39A10 and its role in T cells. Through our study, we discovered that two specific genetic variations in the SLC39A10 gene are associated with inflammatory bowel disease (IBD). To further explore this connection, we created genetically modified mice with a targeted deletion of the Slc39a10 gene in T cells.

Our findings revealed that the loss of SLC39A10 significantly protects against the progression of both IBD and experimental autoimmune encephalomyelitis (EAE). Notably, we also observed that the absence of this transporter led to increased cell death, independent of common pathways usually associated with apoptosis. This indicates that SLC39A10 plays a crucial role in maintaining the health of T cells by facilitating zinc import, which is essential for DNA replication when T cells are activated.

Our research contributes to a deeper understanding of how zinc homeostasis impacts immune function. The insights gained from this study suggest that targeting zinc transport could present new therapeutic options for managing T cell-related autoimmune diseases.
Read More
8
Zinc's role in alopecia areata
We analyzed how zinc levels in the body relate to alopecia areata (AA), an autoimmune disorder that affects hair loss. Our research involved a systematic review of 34 studies, gathering data from nearly 5,000 participants across 16 countries. By examining various studies, we sought to understand if zinc supplementation could be beneficial for those suffering from AA.

The results were striking. We found that individuals with alopecia areata had significantly lower levels of zinc and vitamin D compared to healthy individuals. Specifically, the data indicated that those with vitamin D deficiency faced a heightened risk of developing AA. This suggests that replenishing these nutrients might help manage the disease.

Importantly, we didn't find a significant difference in copper levels between AA patients and healthy controls, indicating that not all trace elements play the same role in this condition. Overall, our findings highlight the potential of zinc and vitamin D as targeted treatments for alopecia areata, offering new hope for those affected by this condition.
Read More
7
Zinc supplementation eases neutrophil activity
We aimed to explore how zinc supplementation might influence immune responses, particularly focusing on neutrophil activity in the context of autoimmune diseases. To do this, we simulated inflammatory conditions typically seen in such disorders using specific cytokines, interleukin-17 (IL-17) and tumor necrosis factor (TNF)-α.

Our findings indicated that elevating zinc levels significantly reduced the formation of neutrophil extracellular traps (NETs), which are often implicated in tissue damage during autoimmune flare-ups. We also discovered that zinc supplementation lowered the expression of a protein called peptidyl arginine deiminase 4 (PAD4), which is associated with NET formation.

Interestingly, zinc not only decreased harmful neutrophil activity but also boosted the production of beneficial proteins like interleukin-1 receptor antagonist (IL-1RA) and IL-8 in the activated cells. Overall, maintaining adequate zinc levels seems crucial for preserving healthy immune function and preventing the harmful overactivity of neutrophils, suggesting its potential as an adjunct treatment in managing autoimmune conditions.
Read More

User Reviews

USERS' SCORE
Good
Based on 36 Reviews
8.5
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Aids conception
I ordered zinc picolinate to improve my husband's sperm quality when we faced conceiving challenges. After three months of use with other vitamins, he had noticeable improvements. I recommend this supplement for those struggling with male-factor infertility; it worked for us when we wanted to conceive.
Read More
9.5
Eliminates skin spots
Two years ago, I developed unsightly spots on my hands, which my doctor advised treating with zinc. I found it incredibly effective; the spots disappeared and have not returned since.
Read More
9.5
Supports gut health
Picolinate is the least irritating form of zinc I've tried, especially beneficial for my autoimmune disorder. I also take it to strengthen my intestinal walls, as I suffer from leaky gut.
Read More
9.5
Prevention of sickness
With this zinc, I feel less likely to get unwell for a long time. This is my second order! The quality is excellent and easily digestible in the picolinate form. I heed my body's first request for rest, avoiding the necessity of going to bed with a cold.
Read More
9.5
Cleared skin
Excellent! I ordered zinc due to small pimples on my chin. After a month, my skin cleared up, and I haven’t had acne for six months.
Read More

Frequently Asked Questions

An autoimmune disorder occurs when the body's immune system mistakenly attacks its own healthy cells and tissues, believing them to be foreign invaders, such as bacteria or viruses. This reaction can lead to inflammation, tissue damage, and impaired function of the affected organs. There are over 80 known autoimmune diseases, including rheumatoid arthritis, lupus, multiple sclerosis, and type 1 diabetes, each with its own specific symptoms and treatment options. The exact cause of these disorders is still unclear, but a combination of genetic, environmental, and hormonal factors is believed to play a role in their development.

Diagnosis of autoimmune disorders often involves a combination of physical examinations, assessment of symptoms, blood tests, and imaging studies to evaluate organ involvement. Treatment typically focuses on managing symptoms and controlling the immune response using medications such as corticosteroids, immunosuppressants, and biologics. In addition to medication, lifestyle modifications, such as stress management and a balanced diet, can be beneficial in managing symptoms. If you suspect you have an autoimmune condition, it's important to consult a healthcare professional for proper evaluation and tailored treatment options.

Zinc is a versatile metal known for its various applications in industry and health. It is a bluish-white metallic element represented by the symbol Zn and atomic number 30 on the periodic table. Zinc is primarily used for galvanizing steel to prevent rusting, in the manufacturing of alloys, and as a component in batteries. Additionally, zinc plays a crucial role in biological processes, making it an essential trace element in the human diet. It is involved in immune function, protein synthesis, wound healing, and DNA synthesis, highlighting its importance in maintaining overall health and well-being.

Zinc plays a crucial role in immune function and has been studied for its potential benefits in managing autoimmune disorders. This mineral is essential for the development and function of immune cells, and adequate levels may help modulate inflammatory responses. Some studies suggest that zinc supplementation may help reduce the severity of symptoms in certain autoimmune conditions, like rheumatoid arthritis and lupus, by influencing immune responses and reducing oxidative stress.

However, it's important to note that while zinc may offer supportive benefits, it should not be regarded as a standalone treatment for autoimmune disorders. The relationship between zinc and autoimmune diseases is complex; excessive zinc intake can also lead to adverse effects, including interference with other essential minerals. Therefore, anyone considering zinc supplementation, especially those with autoimmune disorders, should consult a healthcare provider for personalized advice and to determine the appropriate dosage. Keeping a balanced diet rich in nutrients, including zinc, can contribute to overall immune health.

Based on user reviews, the timeline for seeing results from zinc supplements can vary depending on personal health conditions and the specific issue being addressed. For individuals dealing with autoimmune disorders or related symptoms, users generally report improvements within a few weeks to several months. For instance, one user indicated noticeable effects on hair loss after four months of use(Read Review), while another mentioned significant alleviation of skin issues after six months(Read Review).

Other users experienced benefits more quickly; for example, one individual reported an improvement in general well-being and fewer illnesses after just a week(Read Review). It's essential to note that individual responses can vary widely based on factors such as dosage, the severity of deficiency, and overall health status. Therefore, while some users see results in a matter of weeks, others may require a more extended period to experience the full benefits of zinc supplementation, especially when managing chronic conditions like autoimmune disorders.

This supplement, particularly in the form of zinc, appears to be supported by scientific research for certain autoimmune disorders. For instance, a study highlighted that zinc plays a crucial role in T cell function and that targeting zinc transport could open new avenues for managing T cell-related autoimmune diseases such as inflammatory bowel disease (IBD) and autoimmune encephalomyelitis (EAE) [1]. Additionally, research on alopecia areata—an autoimmune condition leading to hair loss—revealed that individuals affected had significantly lower zinc levels, hinting that zinc supplementation might offer new management strategies for those suffering from this disease [3].

Moreover, in conditions like multiple sclerosis (MS), dietary zinc levels showed protective effects against spinal cord damage and inflammation [4]. In rheumatoid arthritis (RA) patients, higher dietary zinc intake was associated with a reduced risk of developing osteoporosis [5]. These findings collectively underscore the potential benefits of zinc supplementation in managing various autoimmune disorders, though the importance of moderation, particularly in dietary intake, must also be factored in [2]. Overall, while zinc supplementation shows promise, appropriate guidelines and further research are essential to ensure its safe and effective use in autoimmune disorder management.

Users have reported a variety of symptom improvements after incorporating zinc supplements into their routines, highlighting its versatility and effectiveness for different health issues. For instance, many individuals addressing immune concerns noted enhanced resilience against colds and infections. One user shared that after starting zinc, they stopped experiencing frequent illnesses, which used to occur four times a year(Read Review). Another reported feeling generally healthier and more energetic, attributing their improved well-being to the zinc supplementation after just a week of use(Read Review).

Additionally, the supplement seems to have brought significant relief for skin-related issues, with users reporting clear improvements in conditions like acne and atopic dermatitis. One individual noted that their skin cleared up within a month of use, with no recurrence of acne for six months(Read Review). Others have shared success stories regarding hair growth and strength, especially relating to hair loss due to deficiencies or autoimmune conditions, with some observing a reduction in shedding after several months(Read Review). While individual results can greatly vary based on personal health and circumstances, these anecdotal accounts underline the potential benefits of zinc supplementation for a wide range of concerns.

Users have shared their experiences regarding the combination of zinc supplements with other vitamins and minerals to manage autoimmune disorders. One individual reported taking zinc picolinate alongside Saw Palmetto to combat severe hair loss due to androgenic alopecia, noting significant improvements after four months(Read Review). Another user mentioned that zinc effectively complemented their other vitamins, enhancing their overall health and immune response following a COVID illness(Read Review). Others have found success using zinc with treatments for skin conditions, underscoring the importance of combining it with additional supportive therapies for deeper health benefits.

Additionally, some users emphasized the need for caution with high doses of zinc, suggesting that monitoring and possibly using copper supplementation could be wise due to potential deficiencies that may arise from zinc use alone(Read Review). Overall, reviews indicate a positive perception of combining zinc with other supplements as a strategy to manage autoimmune disorders and related symptoms, providing anecdotal support for this multifaceted approach to health improvement.

Based on user reviews, there is a consensus that zinc, particularly in the form of zinc picolinate, is effective for managing symptoms associated with autoimmune disorders. Users reported improvements in their conditions when they incorporated this supplement into their routines. For instance, one user with leaky gut noted that picolinate was the least irritating form of zinc they tried and benefits were observed in strengthening intestinal walls (Read Review). Another review highlighted zinc's positive effects on atopic dermatitis, indicating that after using zinc picolinate, the user experienced significant relief from symptoms for six months (Read Review).

In terms of dosage, several users mentioned that maintaining an appropriate level of zinc is crucial. One reviewer cautioned against long-term high doses, noting it could potentially lead to copper deficiency, which has implications for autoimmune conditions (Read Review). Another user shared their experience of benefiting from a consistent daily intake of 50 mg, stating this dosage helped mitigate symptoms of their autoimmune disorder while keeping their immunity stable (Read Review).Overall, the reviewed experiences suggest that while zinc has its merits for autoimmune disorders, careful dosage management is essential.

8.8
Improves hormone production
Vitamin D3 is essential for producing adrenal hormones. Many people suffer from significant deficiencies, especially in autumn and winter when sunlight is limited. I find California Gold Nutrition's Vitamin D3 offers sufficient dosages to enhance calcium absorption and maintain strong bones, with an excellent quality and easy-to-swallow capsule.
9.5
Reduces skin itching
I bought these tablets to improve my atopic dermatitis. Despite trying various treatments, nothing worked until I tried zinc picolinate. I haven't experienced itching or skin shedding for six months, and my husband has noticed my skin's improved condition. This supplement truly helped with my autoimmune disorder.
9
Enhanced well-being
Gynecologists recommend zinc for women's health. After a week of taking this product, I noticed improved sleep, fewer leg cramps, and enhanced overall health.
8.3
Enhanced immunity noted
After ordering zinc, I found an interesting effect: I stopped getting ill, which used to happen four times a year. The most noticeable impact has been on my immunity.
9.5
Cleared skin
Excellent! I ordered zinc due to small pimples on my chin. After a month, my skin cleared up, and I haven’t had acne for six months.
9.5
Stops hair loss
On my doctor's recommendation, I've started taking zinc to address severe hair loss due to androgenic alopecia, alongside Saw Palmetto. By the fourth month, I noticed a stop in hair loss. My family also takes it from October to April to boost our resistance to infections, making it a valuable supplement.
9.5
Restored immunity
On my doctor's advice, I ordered this zinc following a COVID illness to bolster my immunity. I noticed significant improvements, including less drowsiness and a sore throat. I take it with other iHerb vitamins and I'm very pleased with the results!
5.5
Use with caution
This is a great source of zinc. Zinc picolinate absorbs better than other forms. However, be cautious about long-term use; high doses can lead to copper deficiency, potentially causing an autoimmune disorder. Now, I take it occasionally, considering a lower dose or copper supplementation next time.
9.5
Supports gut health
Picolinate is the least irritating form of zinc I've tried, especially beneficial for my autoimmune disorder. I also take it to strengthen my intestinal walls, as I suffer from leaky gut.
8.8
Improved immunity
I have been taking capsules for five months, and I’ve noticed my hair is falling out less. Despite many around me falling ill, my health remains stable. The packaging is economical, and I appreciate the 50 mg dosage, which makes it easy to take one capsule daily. Overall, my immunity seems to be high, which is beneficial, especially when dealing with an autoimmune disorder.
We identified an important link between zinc transport and autoimmune disorders, specifically focusing on the protein SLC39A10 and its role in T cells. Through our study, we discovered that two specific genetic variations in the SLC39A10 gene are associated with inflammatory bowel disease (IBD). To further explore this connection, we created genetically modified mice with a targeted deletion of the Slc39a10 gene in T cells.

Our findings revealed that the loss of SLC39A10 significantly protects against the progression of both IBD and experimental autoimmune encephalomyelitis (EAE). Notably, we also observed that the absence of this transporter led to increased cell death, independent of common pathways usually associated with apoptosis. This indicates that SLC39A10 plays a crucial role in maintaining the health of T cells by facilitating zinc import, which is essential for DNA replication when T cells are activated.

Our research contributes to a deeper understanding of how zinc homeostasis impacts immune function. The insights gained from this study suggest that targeting zinc transport could present new therapeutic options for managing T cell-related autoimmune diseases.
8
Zinc's role in alopecia areata
We analyzed how zinc levels in the body relate to alopecia areata (AA), an autoimmune disorder that affects hair loss. Our research involved a systematic review of 34 studies, gathering data from nearly 5,000 participants across 16 countries. By examining various studies, we sought to understand if zinc supplementation could be beneficial for those suffering from AA.

The results were striking. We found that individuals with alopecia areata had significantly lower levels of zinc and vitamin D compared to healthy individuals. Specifically, the data indicated that those with vitamin D deficiency faced a heightened risk of developing AA. This suggests that replenishing these nutrients might help manage the disease.

Importantly, we didn't find a significant difference in copper levels between AA patients and healthy controls, indicating that not all trace elements play the same role in this condition. Overall, our findings highlight the potential of zinc and vitamin D as targeted treatments for alopecia areata, offering new hope for those affected by this condition.
9
Zinc supplementation benefits MS models
We explored how dietary zinc levels influence spinal cord damage and gene expressions associated with Multiple Sclerosis (MS) using a cuprizone-induced rat model. The study included 46 adult male Wistar rats divided into five groups, with some receiving zinc supplementation while others followed a zinc-deficient diet.

After eight weeks of treatment, we found that the rats with MS symptoms showed elevated markers of tissue damage and inflammation, particularly in the groups that lacked zinc. Notably, those receiving zinc supplementation exhibited significantly reduced levels of harmful substances, bringing them back closer to control levels.

Our findings highlight zinc's protective effects in a model of MS, suggesting that incorporating zinc into treatment plans could help alleviate some symptoms associated with this autoimmune disorder. This is promising for future treatment strategies for those affected by MS.
9
Zinc intake benefits RA bone health
We aimed to understand how dietary zinc intake influences the risk of developing osteopenia and osteoporosis in patients with rheumatoid arthritis (RA). Our study relied on data collected from the National Health and Nutrition Examination Survey, spanning several years. Through careful analysis using univariate and multivariate logistic regression models, we were able to uncover significant associations between dietary zinc levels and bone health in this population.

What we found was encouraging: higher zinc intake appeared to lower the chances of these serious bone conditions among RA patients. Our research also went further by examining various factors such as age, body mass index (BMI), and pre-existing health issues like diabetes and hypertension. This comprehensive approach led us to conclude that adequate dietary zinc is crucial for maintaining bone health in individuals with RA, though we noted the need for more extensive long-term studies to corroborate these findings and delve deeper into the underlying mechanisms at play.
4
Zinc intake influences autoimmune risk
We examined the connection between dietary zinc intake and the risk of autoimmune thyroiditis (AIT), particularly focusing on Hashimoto's thyroiditis. The study analyzed data from the 2007-2008 National Health and Nutrition Examination Survey, including nearly 5,500 participants—273 with AIT and 5,194 without it.

Our findings revealed that higher dietary zinc intake is associated with an increased risk of AIT, acting as an independent risk factor. This is concerning, as excessive zinc could disrupt our immune balance, potentially leading to other autoimmune disorders.

While it’s clear that zinc plays a role in thyroid health, we must be cautious about how much we consume. The study suggests that dietary zinc should be carefully monitored in those at risk for AIT, and it highlights the need for further research to establish safe consumption levels.

References

  1. Shao Y, Mu Q, Wang R, Luo H, Song Z, et al. SLC39A10 is a key zinc transporter in T cells and its loss mitigates autoimmune disease. Sci China Life Sci. 2025. doi:10.1007/s11427-024-2817-y
  2. Chen L, Yan C, Huang C, Jiang Z, Lin R, et al. Higher dietary zinc intake increases the risk of autoimmune thyroiditis. Postgrad Med J. 2025. doi:10.1093/postmj/qgae202
  3. Wu R, Li Y, Peng H, Yang Z, Wang Y, et al. Association Between Serum Trace Elements Level and Alopecia Areata: A Systematic Review and Meta-Analysis. J Cosmet Dermatol. 2025;24:e16740. doi:10.1111/jocd.16740
  4. Bayiroglu AF, Acar G, Gulbahce-Mutlu E, Baltaci SB, Mogulkoc R, et al. Dietary zinc status is associated with ZnT3 (SLC30A3), IL-6 gene expressions and spinal cord tissue damage in spinal cord tissue in a cuprizone-induced rat Multiple Sclerosis model. J Trace Elem Med Biol. 2024;86:127540. doi:10.1016/j.jtemb.2024.127540
  5. Fang D, Jiang D, Shi G, Song Y. The association between dietary zinc intake and osteopenia, osteoporosis in patients with rheumatoid arthritis. BMC Musculoskelet Disord. 2024;25:710. doi:10.1186/s12891-024-07768-5
  6. Cheng J, Rink L, Wessels I. Zinc Supplementation Reduces the Formation of Neutrophil Extracellular Traps by Decreasing the Expression of Peptidyl Arginine Deiminase 4. Mol Nutr Food Res. 2024;68:e2400013. doi:10.1002/mnfr.202400013
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