Bariatric Advantage Chewable Calcium Citrate 500 mg Calcium 500 IU Vitamin D3 Wild Cherry Review

Product Focus: Blood SugarAlso covers:HormonesBonesHeart
Tier ⓘ
Tier 2 · Rank 30
Tier 2 · Researched. Human studies show improvement in an aging-related function or a specific goal, and the reviews agree. Rank 30 within Tier 2 for Blood Sugar; 30 of 90 overall. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
68 /100
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
93% of 5,200
Biohacker Mentions
0 of 10

Study, Trial or Testing Result Summary

Members Only131 human studies · 57 improved

6 of these 131 human studies gave the ingredient by drip, not by mouth.

131 human studies57 improved48 no effect1,342,527 people studied

This chewable gives a full studied dose of vitamin D and calcium at three servings a day, plus small amounts of vitamin K and magnesium. In people with type 2 diabetes, two large pooled analyses found that vitamin D modestly lowered fasting blood sugar, the long-term blood sugar marker and insulin resistance, most in people low in vitamin D [1][2]. In adults with prediabetes, vitamin D cut the risk of developing diabetes by 15% over about 3 years [3], and in pregnant women it lowered pregnancy diabetes by about 36% [4]. Not every study agreed: a 5 year trial of 22,220 older adults found no significant drop in diabetes risk [5], and a pooled analysis in prediabetes found no change in fasting blood sugar [6]. Calcium taken with vitamin D lowered fasting insulin and insulin resistance in one trial [7] and fasting blood sugar in pregnant women [8], though calcium's own share is unclear. Vitamin K and magnesium are below the doses that helped in studies, so their reported benefits on blood sugar may not apply here [9][10]. Animal and cell studies are never counted.

See all 131 studies →Hide the studies

Review Totals and Summary

Members Only5,200 reviews · 93% positive
5,200 reviews · Google Shopping 5,200
93% positive0% neutral7% negative

Extensive customer reviews and qualitative feedback are currently being aggregated for this product. Check back soon for a detailed sentiment analysis.

Biohacker Summary

Members Only0 of 10 recommend it
0 of 10 biohackers on our panel recommend it

Vitamin D is the main ingredient, and the panel leans toward it: about half recommend it and several take it, with doses of 5000 IU of D3 each morning from two of them. Panelists take it because most people don't get enough from sun or food, to support calcium use and bone health, and for general health or longevity. Several advise taking it with dietary fat for better absorption, and the morning is the usual time. Three of them pair it with vitamin K2, with two giving 90 mcg, saying K2 steers calcium into bones and away from arteries, and one says there is little point supplementing unless you are low. Magnesium is a smaller ingredient in this product, and panelists mostly take it for sleep, with glycinate or threonate as the preferred forms.

See all 10 biohackers →Hide the biohackers
  • Dr. Eric Berg · Vitamin D · neutral
    • 8 Nov 2026 · neutral · Facebook ↗
      Lists Vitamin D as an ingredient found in sardines.
    • 8 Nov 2026 · Calcium · neutral · Facebook ↗
      States that one can of sardines contains 382 mg of calcium.
    • 7 Nov 2026 · recommends · Facebook ↗
      Recommends Vitamin D3 because it's nearly impossible to get enough from food and most people don't get enough sun, advising to aim for blood levels of at least 50 to 80 ng/mL.
    • 7 Nov 2026 · neutral · Instagram ↗
      Dr. Berg states that when nutrients like vitamin D are too low, fatigue and weakness can follow.
    • 7 Nov 2026 · Vitamin K · recommends · Facebook ↗
      Recommends pairing Vitamin D3 with K2, stating that K2 helps keep calcium out of soft tissues.
    • 7 Nov 2026 · Calcium · warns · Facebook ↗
      Warns against calcium supplements, citing studies that link them to a higher risk of heart attack, especially in postmenopausal women, and suggests getting calcium from dairy instead.
    • 7 Nov 2026 · Magnesium · recommends · Facebook ↗
      Recommends Magnesium glycinate, noting its high absorption rate compared to magnesium oxide, and its support for energy, sleep, muscle relaxation, and vitamin D function.
    • 7 Nov 2026 · Magnesium · neutral · Instagram ↗
      Dr. Berg states that when nutrients like magnesium are too low, fatigue and weakness can follow.
    • 6 Nov 2026 · recommends · Podcast ↗
      Recommends focusing on vitamin D3 to support stronger bones if a neck hump is associated with osteoporosis.
    • 6 Nov 2026 · recommends · YouTube ↗
      Recommends a minimum of 10,000 IU of vitamin D per day to support natural killer cells.
    • 6 Nov 2026 · Vitamin K · recommends · Podcast ↗
      Recommends focusing on vitamin K2 to support stronger bones if a neck hump is associated with osteoporosis.
    • 6 Nov 2026 · Calcium · recommends · Podcast ↗
      Recommends focusing on calcium to support stronger bones if a neck hump is associated with osteoporosis.
    • 6 Nov 2026 · Magnesium · recommends · Podcast ↗
      Recommends focusing on magnesium to support stronger bones if a neck hump is associated with osteoporosis.
    • 6 Nov 2026 · Magnesium · neutral · Instagram ↗
      Explains that leg and calf cramps are most often caused by low magnesium, with leafy greens being a top source.
  • Dr. Rhonda Patrick · Vitamin D · neutral
    • 8 Nov 2026 · neutral · Instagram ↗
      Notes that vitamin D from sunlight, food, or supplements needs to undergo conversions in the liver and kidneys to become its active hormone form, calcitriol.
    • 8 Nov 2026 · Magnesium · recommends · Instagram ↗
      Explains that magnesium helps the body activate and metabolize vitamin D, and that magnesium intake has been associated with lower odds of vitamin D deficiency and insufficiency.
    • 6 Nov 2026 · Magnesium · neutral · Instagram ↗
      Mentions that getting too little magnesium may play a role in declining testosterone levels.
    • 4 Nov 2026 · neutral · Instagram ↗
      States that Vitamin D supplementation has been associated with a 40% lower dementia risk, and low levels are linked to a 50 to 80% higher risk.
    • 3 Nov 2026 · Magnesium · recommends · X ↗
      Recommends getting enough magnesium, around 300–400 mg daily from diet and supplements, as it is an essential cofactor for vitamin D metabolism. Magnesium glycinate is a good form.
    • 1 Nov 2026 · Vitamin K · neutral · YouTube ↗
      Mentions vitamin K as one of the micronutrients found in multivitamins that people often don't get enough of from their diets.
    • 1 Nov 2026 · Magnesium · neutral · YouTube ↗
      Mentions magnesium as one of the micronutrients found in multivitamins that people often don't get enough of from their diets.
    • 31 Oct 2026 · Magnesium · neutral · YouTube ↗
      Explains that magnesium helps control blood pressure by boosting the production of substances that relax blood vessels and improve cardiovascular health, citing a meta-analysis that found magnesium supplementation at an average dose of 368 mg per day notably lowers both systolic and diastolic blood pressure.
    • 29 Oct 2026 · Magnesium · neutral · Facebook ↗
      Magnesium supplementation has lowered blood pressure in randomized controlled trials. An analysis of 34 trials involving over 2,000 participants found modest reductions in both systolic and diastolic pressure, with a median dose of 368 mg/day.
    • 28 Oct 2026 · recommends · YouTube ↗
      Recommends getting adequate vitamin D, noting that people taking vitamin D supplements have a 40% lower risk of dementia, while those with lower vitamin D have a 50-80% higher risk.
    • 16 Oct 2026 · Magnesium · warns · Facebook ↗
      Warns that some magnesium supplements make the dose look much larger than it really is and that labels can fool people.
    • 5 Oct 2026 · neutral · Facebook ↗
      Vitamin D supplementation was linked to a 40% lower risk of dementia in an observational study of more than 12,000 older adults.
    • 30 Sep 2026 · recommends · YouTube ↗
      Mentions that vitamin D also plays a role in maintaining muscle mass.
    • 29 Sep 2026 · Magnesium · recommends · YouTube ↗
      Mentions magnesium as an important nutrient component for testosterone.
  • Dave Asprey · Vitamin K · recommends
    • 7 Nov 2026 · recommends · YouTube ↗
      Explains that Vitamin K2 acts as a traffic cop for calcium, waving it into bones and away from arteries, and that grass-fed butter is one of the only foods with a real amount of K2.
    • 3 Nov 2026 · Magnesium · uses · Instagram ↗
      Looks at magnesium alongside protein to keep muscle for the long run.
    • 3 Nov 2026 · Magnesium · recommends · YouTube ↗
      Suggests adding magnesium to help keep potassium in the system longer, as they work hand in hand.
    • 1 Nov 2026 · Vitamin D · uses · Facebook ↗
      Takes Vitamin DAKE from Suppgrade Labs.
    • 31 Oct 2026 · Magnesium · neutral · YouTube ↗
      Mentions magnesium in the context of sleep but states that it doesn't address the core issue of waking up during the night.
    • 25 Oct 2026 · Vitamin D · recommends · Podcast ↗
      Suggests that vitamin D supports brain health, muscle function, and focus.
    • 25 Oct 2026 · Magnesium · recommends · Podcast ↗
      Suggests that magnesium may help slow aging, support cellular repair, and improve sleep.
    • 17 Oct 2026 · Magnesium · neutral · Facebook ↗
      States that magnesium can affect how the body responds to a supplement.
    • 9 Oct 2026 · Vitamin D · recommends · Podcast ↗
      Host Dave Asprey explains why correcting a vitamin D deficiency still makes sense for male fertility, even though supplementation did not improve overall semen parameters in a randomized trial.
    • 7 Oct 2026 · recommends · YouTube ↗
      Recommends taking vitamin K2 with vitamin D to keep calcium in the bones, and suggests kids also take it for stronger bones.
    • 7 Oct 2026 · recommends · YouTube ↗
      Recommends Vitamin K2, stating it supports healthy calcium metabolism.
    • 7 Oct 2026 · Vitamin D · uses · YouTube ↗
      States that currently, he is only taking vitamin C and vitamin D.
    • 27 Sep 2026 · Magnesium · recommends · Podcast ↗
      Recommends fixing sleep with 300mg of Magnesium 101 before bed if diet and exercise aren't melting stubborn belly fat.
    • 7 Sep 2026 · Magnesium · uses · Instagram ↗
      Dave Asprey says his daily routine includes magnesium as part of a carefully developed combination for longevity.
  • Thomas DeLauer · Vitamin K · recommends
    • 5 Nov 2026 · recommends · YouTube ↗
      Recommends taking Vitamin K2 with Vitamin D3 in the morning, along with morning fats, to ensure calcium is directed to the bones and not deposited in arteries or soft tissue.
    • 5 Nov 2026 · Vitamin D · recommends · YouTube ↗
      Recommends taking Vitamin D3 in the morning, between 6:00 and 10:00 a.m., to align with the body's natural metabolic activation phase and sunlight-triggered vitamin D production.
    • 5 Nov 2026 · Magnesium · recommends · YouTube ↗
      Recommends taking magnesium glycinate and threonate at night to act as a brake on the nervous system, block excitatory signaling, help wind down, and support serotonin and melatonin production for better sleep.
    • 4 Nov 2026 · Magnesium · neutral · YouTube ↗
      Mentions that magnesium glycinate also helps a lot with sleep.
    • 2 Nov 2026 · Magnesium · neutral · YouTube ↗
      Mentions that restless leg syndrome is often treated with magnesium, but states that the sensation is actually coming from three other issues.
    • 28 Oct 2026 · Magnesium · uses · YouTube ↗
      Uses Element's cans which contain 30 milligram magnesium, finding that electrolytes help his workout performance.
    • 24 Oct 2026 · Magnesium · uses · YouTube ↗
      Uses Element's 30 mg magnesium cans first thing in the morning to prime his day and help with workout performance.
    • 23 Oct 2026 · Vitamin D · uses · YouTube ↗
      Uses vitamin D3 in the fall and winter months when getting less sun, as it's important to supplement it then.
    • 23 Oct 2026 · Magnesium · recommends · YouTube ↗
      Recommends magnesium around the time one would normally break a fast to calm the brain and dull feelings of conditioned hunger.
    • 20 Oct 2026 · Vitamin D · recommends · YouTube ↗
      Recommends taking a massive amount of vitamin D simultaneously with an early morning massive breakfast to help reset circadian rhythms and address hyperphagia.
    • 8 Oct 2026 · Vitamin D · recommends · Facebook ↗
      Recommends Vitamin D, stating that it has receptors throughout the brain and deficiency can quickly impact brain and mood.
    • 8 Oct 2026 · Magnesium · recommends · Facebook ↗
      Recommends magnesium, noting it is a cofactor for enzymes that build neurotransmitters, and deficiency can affect mood, happiness, and motivation.
    • 6 Oct 2026 · Vitamin D · uses · YouTube ↗
      Takes supplemental vitamin D because he is skin sensitive and from northern latitudes, limiting his UV exposure.
    • 6 Oct 2026 · Magnesium · neutral · YouTube ↗
      Notes that modern agricultural practices have led to soils depleted of trace minerals like magnesium, resulting in widespread magnesium deficiency.
  • Dr. Mark Hyman · Vitamin D · uses
    • 4 Nov 2026 · uses · YouTube ↗
      Consumes Zetopia's Atlantic salmon to get Vitamin D, particularly in the winter months, as it is one of the few foods that provides both Omega-3s and Vitamin D.
    • 4 Nov 2026 · Magnesium · recommends · YouTube ↗
      Recommends magnesium breakthrough advanced ten from Biooptimizers, which is their most complete magnesium formula with 10 bioavailable forms and 550 milligrams of elemental magnesium, designed to support restful restorative sleep, muscle recovery, stress resilience, and metabolic health.
    • 1 Nov 2026 · Magnesium · uses · Facebook ↗
      Recommends considering magnesium glycinate before bed for nervous system support, deeper sleep quality, and to help the body transition into rest, and states that they take it every night.
    • 29 Oct 2026 · neutral · YouTube ↗
      Mentions that the body makes vitamin D from sunlight exposure, and a deficiency can hinder calcium absorption, which is crucial for strong bones.
    • 29 Oct 2026 · Magnesium · neutral · YouTube ↗
      Explains that a lack of magnesium can cause muscles and nerves to malfunction, resulting in muscle weakness, twitching, and cramps.
    • 26 Oct 2026 · recommends · Facebook ↗
      Recommends Vitamin D for health, stating that amazing things happen when patients' vitamin D statuses reach optimal levels.
    • 21 Oct 2026 · neutral · YouTube ↗
      Mentions vitamin D as an existing biomarker that plays a role in mental health, which Function Health includes in their measurements.
    • 21 Oct 2026 · Magnesium · recommends · YouTube ↗
      Recommends Magnesium Breakthrough Advanced 10 from Bioptimizers for restful sleep, muscle recovery, stress resilience, and metabolic health, especially during stressful times of the year.
    • 19 Oct 2026 · neutral · YouTube ↗
      Notes that vitamin D plays a role in immune function.
    • 14 Oct 2026 · Magnesium · recommends · TikTok ↗
      Recommends magnesium because it is involved in over 600 reactions in the body and up to 80% of people may have low levels that never get flagged on a standard blood test.
    • 12 Oct 2026 · Magnesium · recommends · YouTube ↗
      Recommends magnesium as a basic supplement during detoxification to support pathways, help with constipation, and provide electrolytes.
    • 8 Oct 2026 · recommends · Instagram ↗
      Recommends checking vitamin D levels and states that if they had to pick one single intervention for immune health, vitamin D would be it.
    • 7 Oct 2026 · neutral · Podcast ↗
      Dr. Hyman discusses vitamin D in relation to sun exposure patterns.
    • 7 Oct 2026 · recommends · YouTube ↗
      States that vitamin D supplementation can help with oxidative stress.
  • Siim Land · Vitamin D · recommends
    • 31 Oct 2026 · recommends · YouTube ↗
      Advises against taking vitamin D in the morning with other supplements because it is fat soluble and requires dietary fat for better absorption.
    • 29 Oct 2026 · recommends · Instagram ↗
      Recommends taking Vitamin D with fat for better absorption.
    • 25 Oct 2026 · Magnesium · recommends · Instagram ↗
      States that Magnesium can be a useful addition for some people for sleep.
    • 24 Oct 2026 · neutral · Instagram ↗
      States that Vitamin D connects biology to light and that UVB reaching the skin enables its production.
    • 12 Oct 2026 · Magnesium · recommends · YouTube ↗
      Recommends magnesium for sleep, especially deep sleep, and suggests trying better types like Threonate, Biscinate, or Torate, referencing a study where magnesium supplementation improved deep sleep.
    • 9 Oct 2026 · Vitamin K · neutral · Instagram ↗
      Notes that Vitamin K2 helps activate proteins involved in bone mineralization and calcium regulation.
    • 8 Oct 2026 · Vitamin K · neutral · YouTube ↗
      Mentions that prunes contain vitamin K, which is a factor in their ability to help with bone density.
    • 7 Oct 2026 · Vitamin K · recommends · Instagram ↗
      Recommends Vitamin K2 for bone health and calcium metabolism, based primarily on human research, especially randomized controlled trials showing measurable benefits.
    • 7 Oct 2026 · Magnesium · recommends · Instagram ↗
      Recommends Magnesium for blood pressure, migraines and deficiency, based primarily on human research, especially randomized controlled trials showing measurable benefits.
    • 6 Oct 2026 · Vitamin K · neutral · X ↗
      Lists Vitamin K2 as one of 15 supplements backed by human studies.
    • 6 Oct 2026 · Magnesium · neutral · X ↗
      Lists Magnesium as one of 15 supplements backed by human studies.
    • 30 Sep 2026 · Vitamin K · neutral · X ↗
      Lists leafy greens as a source of Vitamin K1.
    • 30 Sep 2026 · Magnesium · recommends · Instagram ↗
      States that magnesium is a fundamental mineral governing over 600 enzymes and metabolic reactions, and recommends that most people need at least 400-500 mg/d for health, with some needing up to 600 mg/d.
    • 30 Sep 2026 · Magnesium · neutral · X ↗
      Lists seafood and pumpkin seeds as sources of Magnesium.
  • Ben Greenfield · Vitamin D · recommends
    • 29 Oct 2026 · recommends · YouTube ↗
      Notes that Vitamin D is actually a hormone and recommends patients aim for levels around 40 to 50, or even 60 for fracture healing, for optimal healing, as opposed to just above 20 which is considered normal.
    • 29 Oct 2026 · Magnesium · uses · YouTube ↗
      Uses magnesium during surgery because it is neuroprotective.
    • 22 Oct 2026 · Magnesium · uses · YouTube ↗
      Says he is drinking LMNT, which contains sodium, potassium, and magnesium, and states that he actually drinks this stuff.
    • 15 Oct 2026 · recommends · Podcast ↗
      Mentions vitamin D as part of a bare-minimum protocol.
    • 15 Oct 2026 · recommends · YouTube ↗
      Advises getting vitamin D levels between 60 and 100 nanograms per milliliter as a minimum step for overall health and to slow down heart disease.
    • 15 Oct 2026 · Vitamin K · neutral · Facebook ↗
      Discusses vitamin K2, specifically the menaquinone forms, as crucial for arterial health and notes that it breaks down into MK-4 and MK-7.
    • 15 Oct 2026 · Vitamin K · uses · YouTube ↗
      Explains that gut bacteria liberate K from the diet or make the K needed, and that poor absorption of vitamin K due to bacterial imbalances is linked to heart disease.
    • 15 Oct 2026 · Magnesium · recommends · Podcast ↗
      Mentions magnesium as part of a bare-minimum protocol.
    • 15 Oct 2026 · Magnesium · recommends · YouTube ↗
      Advises getting red blood cell magnesium levels to the high end of the range as a minimum step for overall health and to slow down heart disease.
    • 3 Sep 2026 · Magnesium · recommends · YouTube ↗
      Recommends supplementing with magnesium threonate if one is low in magnesium, as it crosses the blood-brain barrier and is demonstrated to increase hippocampus plasticity, theoretically making one smarter and improving memories.
    • 25 Aug 2026 · Magnesium · uses · Facebook ↗
      Uses Magnesium Breakthrough from BIOptimizers as part of their daily stack, taking four capsules in the evening to support relaxation, recovery, and a good night of sleep.
    • 20 Aug 2026 · uses · YouTube ↗
      Has been taking Vitamin D3 K2 for over a decade.
    • 17 Aug 2026 · Magnesium · recommends · Facebook ↗
      Recommends Celtic Sea Salt's new electrolyte drink "Hydrate" for replacing electrolytes and trace minerals lost through sweat, noting it contains 70 naturally occurring trace minerals, plus magnesium, taurine, and potassium.
    • 15 Aug 2026 · Magnesium · warns · YouTube ↗
      Had heart palpitations when he was really overdoing magnesium, not knowing what he was taking.
  • Bryan Johnson · Vitamin K · uses
    • 22 Oct 2026 · uses · X ↗
      Takes 90 mcg of Vitamin K2 in the morning for general health.
    • 22 Oct 2026 · Vitamin D · uses · X ↗
      Takes 5000 IU of Vitamin D3 in the morning for general health.
    • 22 Oct 2026 · Magnesium · uses · X ↗
      Takes 400 mg of Magnesium Threonate before bed for sleep.
    • 15 Aug 2026 · Vitamin D · uses · X ↗
      Takes 5000 IU of Vitamin D3 in the morning for general health.
    • 15 Aug 2026 · Magnesium · uses · X ↗
      Takes 400 mg of Magnesium L-Threonate before bed for sleep.
    • 3 Jul 2026 · Vitamin D · neutral · X ↗
      Mentions that the sunlight assessment claims low vitamin D levels cause the immune system to misfire, and notes that their vitamin D has been measured.
    • 4 May 2026 · uses · X ↗
      Takes 100 mcg of Vitamin K2 in the morning for longevity.
    • 4 May 2026 · Vitamin D · uses · X ↗
      Takes 5000 IU of Vitamin D3 in the morning for longevity.
    • 4 May 2026 · Magnesium · uses · X ↗
      Takes 400 mg of Magnesium Threonate before bed for sleep.
    • 2 May 2026 · uses · X ↗
      He takes 100 mcg of Vitamin K2 in the morning for general health.
    • 2 May 2026 · Vitamin D · uses · X ↗
      He takes 5000 IU of Vitamin D3 in the morning for general health.
    • 2 May 2026 · Magnesium · uses · X ↗
      He takes 400 mg of Double Wood Magnesium L-Threonate before bed for sleep.
    • 21 Apr 2026 · Vitamin D · uses · X ↗
      Takes 5000 IU of Vitamin D3 in the morning for general health.
    • 21 Apr 2026 · Magnesium · uses · X ↗
      Takes 400 mg of Magnesium L-Threonate before bed for sleep.
  • Andrew Huberman · Vitamin D · neutral
    • 21 Sep 2026 · neutral · YouTube ↗
      Notes that most people are probably deficient in vitamin D and benefit from supplementing, but there's no point in doing it unless you're deficient for most things.
    • 4 Nov 2026 · Magnesium · recommends · Instagram ↗
      Notes that Les Spellman's team includes 'Magnesium timed right' as part of their game plan to optimize recovery in unfavorable conditions.
    • 22 Oct 2026 · Magnesium · neutral · Podcast ↗
      Discusses Magnesium Threonate as a tool for falling asleep.
    • 7 Aug 2026 · uses · X ↗
      Takes 5,000 IU of Vitamin D3 in the morning for longevity.
    • 7 Aug 2026 · Vitamin K · uses · X ↗
      Takes 90 mcg of Vitamin K2 in the morning for longevity.
    • 7 Aug 2026 · Magnesium · uses · X ↗
      Takes 400 mg of Magnesium Threonate before bed for sleep.
    • 27 Jul 2026 · Magnesium · uses · YouTube ↗
      Uses Element, an electrolyte drink with sodium, magnesium, and potassium in correct ratios and no sugar, to ensure adequate hydration and electrolytes, especially when starting days fast or during physical exercise.
    • 20 Jul 2026 · uses · X ↗
      Takes 5000 IU of Vitamin D3 in the morning for general health.
    • 20 Jul 2026 · recommends · YouTube ↗
      States that Vitamin D is one of the critical nutrients with the best evidence for cognitive function and reducing the risk of dementia.
    • 20 Jul 2026 · Magnesium · uses · X ↗
      Takes 400 mg of Magnesium L-Threonate before bed for sleep.
    • 20 Jul 2026 · Magnesium · recommends · YouTube ↗
      Confirms that magnesium is absolutely important for cognitive function, noting studies show those with lower magnesium intakes tend to perform less well on cognitive function tests, and it's related to brain changes over time and dementia risk.
    • 13 Jul 2026 · uses · X ↗
      Takes 5000 IU of Vitamin D3 in the morning.
    • 13 Jul 2026 · Vitamin K · uses · X ↗
      Takes 90 mcg of Vitamin K2 in the morning.
    • 13 Jul 2026 · Magnesium · uses · X ↗
      Takes 400 mg of Double Wood Magnesium L-Threonate before bed for sleep.
  • Peter Attia · Vitamin D · uses
    • 4 Jan 2026 · uses · YouTube ↗
      Lists vitamin D as one of her staple supplements.
    • 1 Jun 2026 · Magnesium · neutral · Podcast ↗
      Peter reviews the evidence for select off-label medications and supplements commonly used for sleep, including glycine, magnesium, ashwagandha, and phosphatidylserine.
    • 4 Jan 2026 · Magnesium · recommends · YouTube ↗
      Suggests that zinc and magnesium could potentially help with vasodilation and sleep, particularly for women experiencing severe symptoms in the luteal phase.
    • 16 Nov 2025 · neutral · YouTube ↗
      Notes that several studies show patients taking vitamin D can reduce TPO levels and prolong the honeymoon period of Hashimoto's disease.
    • 15 Sep 2025 · Magnesium · recommends · Podcast ↗
      Peter discusses electrolytes and fiber and the ketogenic diet, specifically preventing magnesium loss.
    • 6 Aug 2025 · neutral · YouTube ↗
      States that in mouse studies, there was a combined effect of alpha ketoglutarate with vitamin D for both sexes.
    • 3 Aug 2025 · neutral · YouTube ↗
      Uses vitamin D as an example of how people might dismiss its efficacy due to failed clinical trials that didn't adjust the dose or measure levels.
    • 20 Jul 2025 · neutral · YouTube ↗
      In mouse studies, Peter Attia's team found a combined effect of AKG with Vitamin D for both sexes.
    • 10 Jul 2025 · neutral · YouTube ↗
      Suggests that supplementing with lots of vitamin D might help overcome the negative effects of phenytoin on bone health by improving calcium absorption, though he is unaware of studies on this.
    • 9 Jul 2025 · recommends · YouTube ↗
      Recommends Vitamin D3 as one of the 'big three' micronutrients for bone health, suggesting a daily intake of 800 to 1,000 IU, which can be obtained through sunlight or supplementation.
    • 9 Jul 2025 · Magnesium · recommends · YouTube ↗
      Recommends magnesium as one of the 'big three' micronutrients for bone health, suggesting a daily intake of 300 to 500 milligrams as a minimum, and personally aims for about a gram of supplemental magnesium.
    • 9 Jul 2025 · Calcium · recommends · YouTube ↗
      Recommends calcium as one of the 'big three' micronutrients for bone health, suggesting a daily intake of 1,000 to 1,200 milligrams, which can be supplemented with calcium carbonate or calcium citrate.
    • 6 Jul 2025 · neutral · YouTube ↗
      Suggests that supplementing with lots of vitamin D might overcome the negative effects of phenytoin on bone health by counteracting increased catabolism of vitamin D and subsequent decreased calcium absorption.
    • 6 Jul 2025 · Magnesium · recommends · YouTube ↗
      Recommends magnesium for optimizing bone mineral density, suggesting a daily intake of 300 to 500 milligrams as a minimum, but personally aims for about a gram.

RAL Summary

Members OnlyTier 2 for Blood Sugar

Pooled analyses show vitamin D at a full dose modestly improves blood sugar and insulin resistance and lowers diabetes risk in prediabetes, and 93% of 5,200 reviews are positive [1][3].

Where the evidence disagrees: 48 of the 131 human studies found no effect.

More Details

Members OnlyBody systems · Combine with · Possible side effects

Body systems: Endocrine system, Skeletal system, Cardiovascular system

Combine with: Combine with a healthy diet and lifestyle.

Possible side effects: No major side effects reported.

Supplement Facts

Total Carbohydrates 3 g · Vitamin D 12.5 mcg · Vitamin K 20 mcg
Supplement Facts
Serving Size 1 Chewable Tablet(s)
Servings Per Container 270
Amount Per Serving% Daily Value
Calories10
Total Fat0.5 g
Total Carbohydrates3 g
Vitamin D12.5 mcg
Vitamin K20 mcg
Calcium500 mg
Magnesium14 mg

Other ingredients: Xylitol, Sugar, Stearic Acid, Maltodextrin, Corn Starch, Fructose, Hibiscus Juice, Black Carrot Juice, Natural Flavors, Citric Acid, Magnesium Stearate, Sucralose, Silicon Dioxide.

Directions: Suggested use: Take one tablet three times daily or as directed by your healthcare practitioner. Chew or crush tablets completely before swallowing. Do not swallow tablets whole. Take at least two hours apart from iron.

Barcode (UPC) 755571942791 · Label source: NIH label database · Report a label change

Other sizes and barcodes: 90 Tablet(s), UPC 7 55571 94278 4 (not checked yet); 1 Tablet(s), UPC 7 55571 94280 7 (not checked yet)

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Our articles on this subject

Graded November 10, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.