NOW Supplements Cal-Mag DK
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Supplement Facts
Serving Size: 2 Capsules
Amount Per Serving
%DV
Vitamin D3 (as Cholecalciferol)
8.3 mcg (333 IU)
42%
Calcium (elemental) (from 1,270 mg Calcium Citrate)
266 mg
20%
Magnesium (elemental) (from 230 mg Magnesium Oxide)
133 mg
32%
Vitamin K2 (as Menaquinone)
30 mcg

The product is found useful for the following medical conditions

Pelvic Pain details

SCIENTIFIC SCORE
Possibly Effective
Based on 10 Researches
7.3
USERS' SCORE
Good
Based on 6 Reviews
8.8
8
Magnesium alleviates primary dysmenorrhea
Effectiveness of magnesium pidolate in the prophylactic treatment of primary dysmenorrhea.
Most Relevant Research
We evaluated how magnesium pidolate impacts primary dysmenorrhea in 30 young women. Over six menstrual cycles, we tracked their pain levels using a visual scale. Initially, no treatment was given, and subsequently, magnesium was administered just before menstruation.

The first day of menstrual pain showed a notable decrease with magnesium treatment, especially from the first to the sixth cycle. While there were some improvements on days two and three, those weren't statistically significant. Importantly, no side effects were reported, suggesting magnesium can be a reliable option for managing menstrual pain.
9.5
Pain and swelling gone
Most Useful Review
After Covid, I experienced severe complications in my legs. After starting this, the pain and swelling subsided.

Leg Cramps details

SCIENTIFIC SCORE
Questionable
Based on 25 Researches
5.2
USERS' SCORE
Good
Based on 6 Reviews
8.7
9
Magnesium oxide treats leg cramps
A randomized, double-blind, placebo-controlled, multicenter study assessing the efficacy of magnesium oxide monohydrate in the treatment of nocturnal leg cramps.
Most Relevant Research
We conducted a study to evaluate how effective magnesium oxide monohydrate (MOMH) is in treating nocturnal leg cramps (NLC). This was a randomized, double-blind, placebo-controlled trial involving multiple centers in Ukraine, where participants took either MOMH or a placebo nightly for 60 days.

Our focus was on measuring the frequency and duration of cramps, the pain they caused, and how they affected sleep quality and overall life satisfaction. We used thorough statistical methods to compare the results between the two groups.

The findings indicated that MOMH is both effective and safe for individuals dealing with NLC. Participants reported improvements in their symptoms, demonstrating that this magnesium supplement can play a helpful role in managing nocturnal leg cramps.
9.5
Improved night cramps
Most Useful Review
It helped immensely for leg cramps! I purchased this supplement for my elderly mother on the advice of a doctor, as she suffered from severe cramps in her legs, particularly at night. Previous medication was ineffective, and the convulsions persisted. The doctor recommended this supplement due to its balanced composition, compensating for the natural decrease in vitamin D with age, along with vitamin K2 for better absorption. After 1.5-2 weeks of taking it, my mother could finally sleep peacefully at night! Highly recommend.

Sleep Apnea details

SCIENTIFIC SCORE
Possibly Effective
Based on 4 Researches
7
USERS' SCORE
Good
Based on 5 Reviews
8.7
9
Vitamin D3 improves mild sleep apnea
The effects of vitamin D supplemantation on prognosis in patients with mild obstructive sleep apnea syndrome.
Most Relevant Research
We set out to evaluate what effect vitamin D3 supplementation might have on patients suffering from mild obstructive sleep apnea syndrome (OSAS). In this study, 19 adult men who were diagnosed with mild OSAS and had low vitamin D levels participated over an 8-week period. Each week, they took a sizable dose of 50,000 IU of vitamin D3 while undergoing various health assessments. We measured important factors like blood glucose, lipid profiles, and inflammation markers, along with repeated sleep monitoring through polysomnography.

By the end of the study, we observed a significant increase in participants' vitamin D levels, which jumped from an average of 19.5 to 41.8 ng/mL—an indication that the supplementation was effective. Along with this rise in vitamin D, we also noted improvements in fasting blood glucose and total cholesterol levels, as well as a decrease in key inflammation markers. Most encouragingly, the frequency of obstructive apneas and other related sleep disturbances significantly decreased.

Based on these findings, it seems that vitamin D supplementation can play a beneficial role in improving the prognosis for those with mild OSAS. It's exciting to consider how something as simple as a vitamin could lead to better sleep health for individuals struggling with sleep apnea.
9.5
Better well-being
Most Useful Review
Sound sleep and healthy teeth! The ingredients are good quality. The complex includes calcium for bones and magnesium. The neutral taste and sturdy packaging make this beneficial for improving well-being. It effectively replenishes deficiencies.

Menopause details

SCIENTIFIC SCORE
Possibly Effective
Based on 12 Researches
7.3
USERS' SCORE
Good
Based on 2 Reviews
8.6
9
Magnesium aids menopause-related issues
The Causal Role of Magnesium Deficiency in the Neuroinflammation, Pain Hypersensitivity and Memory/Emotional Deficits in Ovariectomized and Aged Female Mice.
Most Relevant Research
We explored the connection between magnesium deficiency and various challenges commonly faced by postmenopausal women, such as chronic pain, memory decline, and mood disorders. Our research specifically focused on how magnesium supplementation can help in alleviating these issues in ovariectomized and aged female mice—modeling the postmenopausal state.

We administered magnesium-L-threonate to these mice to assess its effects on pain sensitivity, memory function, and emotional behavior through behavioral tests. We found that this treatment not only prevented but also reversed many of the disturbances associated with aging and menopause.

Additionally, we noted significant changes at the molecular level, such as increased levels of inflammatory markers in the brain and spinal cord of untreated mice, which were significantly normalized with magnesium treatment. Notably, low magnesium levels in various body fluids were also addressed by this supplementation, suggesting its potential as a therapeutic approach for menopause-related disorders.

In summary, while estrogen loss during menopause leads to neuroinflammation and related health issues, magnesium supplementation presents a promising option to support postmenopausal health.
8.8
Improved health
Most Useful Review
I ordered this for myself as my test results showed I had nearly no calcium and vitamin D3. I was experiencing soreness in my hands and legs, along with a generally sluggish feeling. Additionally, there was menopause to contend with. The doctor suggested this dietary supplement, as it also includes magnesium and K2. This combination is effective: Vitamin D3 absorbs better with K2, and calcium with Vitamin D3. After using this product, my health improved, and the pain in my arms and legs vanished. I recommend it to everyone.

Osteoporosis details

SCIENTIFIC SCORE
Moderately Effective
Based on 55 Researches
8
USERS' SCORE
Good
Based on 5 Reviews
8.5
9
Magnesium's role in osteoporosis therapy
Mg-ZIF nanozyme regulates the switch between osteogenic and lipogenic differentiation in BMSCs via lipid metabolism.
Most Relevant Research
We explored the effects of a special material called magnesium-based zeolitic imidazolate frameworks, or Mg-ZIF, on osteoporosis. This study aimed to find a way to tackle osteoporosis by reducing reactive oxygen species (ROS)—harmful molecules that affect our bone health.

Our findings revealed that Mg-ZIF is effective at scavenging ROS, which helps boost the bone-forming ability of bone mesenchymal stem cells (BMSCs). By promoting osteogenic differentiation, Mg-ZIF supports the formation of new bone while simultaneously discouraging the development of fat cells from BMSCs, a process known as lipogenic differentiation.

In our in vivo experiments, we confirmed that administering Mg-ZIF could successfully lower ROS levels and mitigate the effects of osteoporosis. On a deeper level, the mechanism behind this involves Mg-ZIF enhancing BMSC differentiation into bone-forming cells by upregulating specific lipid metabolic pathways.

Overall, we believe that Mg-ZIF holds promise as a therapeutic approach for osteoporosis. By addressing the oxidative stress in the bone marrow environment, it opens a new door for potential treatments targeting this common bone disease.
9.5
Significant improvement
Most Useful Review
Excellent! I purchased this for my 87-year-old mother-in-law suffering from osteoporosis. She took one capsule after dinner with dietary fat and consumed milk powder daily. Her condition has improved significantly.

Bone Pain details

SCIENTIFIC SCORE
Possibly Effective
Based on 4 Researches
7.3
USERS' SCORE
Moderately Good
Based on 6 Reviews
7.8
7
CMT shows potential for pain relief
The efficacy of choline magnesium trisalicylate (CMT) in the management of metastatic bone pain: a pilot study.
Most Relevant Research
We investigated how choline magnesium trisalicylate (CMT) helps alleviate bone pain in patients with metastatic cancer. In a carefully designed study involving 26 participants, we compared CMT against a placebo in a crossover format, measuring pain relief at multiple intervals after dosing.

While we observed a significant reduction in pain just one hour post-treatment with CMT, other comparisons showed improvements that didn't reach statistical significance. This suggested that CMT might assist in managing bone pain, potentially complementing traditional opioids, but overall effectiveness is still under exploration.
7
Improved bone density
Most Useful Review
Now Foods Cal-Mag DK works perfectly together; my bone density improved within a few months.
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