Replace 6-8 supplements
with one bottle.

26 evidence-based ingredients. Made and tested in the USA.

Brain & nervous
system support.

B-vitamins contribute to normal psychological function and the normal functioning of the nervous system. Includes methylated B12, methylated folate, and choline.

51% less.
Same stack.

Buying these same evidence-based ingredients separately costs $118.21 a month. MicroVitamin delivers all of them for $58.50 on subscription.

Backed by research.

Every ingredient in MicroVitamin is supported by human clinical trials. Certificates of analysis published. Made and tested in the USA.

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MicroVitamin

MicroVitamin

Brain Health: Methylated B-complex to support cognitive performance.1*

Eye Health: 10mg Lutein + 2mg Zeaxanthin (Lutemax® 2020) and 10mg Lycopene (LycoBeads®).2*

18% Smoother Skin: 200mg of Hyaluronic Acid for skin hydration.3*

Exercise Performance: 126mg Magnesium Taurate + 500mg TMG to support normal muscle function.4*

Third-Party Tested & Made in USA:
GMP-audited, FDA-registered, tested by Labdoor .

Full 26-Ingredient List
TMG (500mg), Choline Bitartrate (181.5mg), Methylated Folate (200mcg), Methylated B12 (12mcg).
Thiamine (0.9mg), Riboflavin (0.98mg), Nicotinamide (16mg), Pantothenic Acid (3.75mg), B6 as P5P (1.28mg), Biotin (22.5mcg).
Magnesium Taurate (126mg Elemental), Encapsulated Vitamin K2 MK-7 as all-trans K2VITAL® DELTA (90mcg), Encapsulated Vitamin D3 as AlgeD3™ (1,000IU), Boron Glycinate (1mg), Potassium (99mg).
Hyaluronic Acid (200mg), Vitamin C (45mg).
Encapsulated Lutein (from Lutemax® 2020) 10mg, Encapsulated Zeaxanthin (from Lutemax® 2020) 2mg, Lycopene (from LycoBeads®) 10mg.
Zinc (11mg), Copper (0.9mg), Manganese (1.15mg), Selenium (27.5mcg), Chromium (17.5mcg), Iodine (75mcg).
Quantity | 1 month's supply per bottle (max 12 per order)
View full details

Over 75% of US adults take dietary supplements (5), but most multivitamins have doses of 500–1000% of the RDA without a clinical reason.

That "more is better" approach has been associated with side effects and wasted spend (6).

Introducing MicroVitamin: A Doctor-Formulated Low-Dose Multivitamin & Mineral

MicroVitamin is different. Dr Brad has carefully crafted the formula based on randomized controlled trials — choosing the doses studied in those trials, the bioavailable forms (methylated B-vitamins, glycinate-chelated minerals), and the encapsulated branded ingredients (K2VITAL® DELTA, AlgeD3™, Lutemax® 2020, LycoBeads®) that stay potent through the bottle's shelf life.

  • A Balanced Diet Comes First

    MicroVitamin is designed to complement a healthy diet, not replace it. Dr Brad emphasizes that obtaining nutrients from a variety of whole foods is important for good health. MicroVitamin aims to fill the gaps and support your nutritional needs when your diet falls short.

     

    The MicroVitamin Difference

    ✓ Cognitive Support (COSMOS-aligned): In the COSMOS trial, older adults taking a daily multivitamin scored better on cognitive tests than those on placebo (1). MicroVitamin includes the COSMOS-aligned essentials, including: methylated B12 and folate (which bypass the MTHFR variant carried by ~40% of people), choline, and chelated trace minerals in glycinate form.

    ✓ Eye Health & Antioxidant Defense: Lutein 10mg + Zeaxanthin 2mg (Lutemax® 2020) are the macular pigments that filter short-wavelength light in the retina. RCTs at this dose have shown significant increases in macular pigment optical density (2). MicroVitamin also contains Lycopene 10mg (LycoBeads®) — a tomato-derived carotenoid (7). All three are encapsulated to stay stable through shelf life.

    ✓ Supports muscle function: Includes 126mg (elemental) magnesium taurate, which contributes to normal muscle function, plus 500mg Trimethylglycine (TMG). (4)

    ✓ 18% Smoother Skin: 200mg of Hyaluronic Acid is a clinically-studied oral dose that supports skin hydration and elasticity from within. (3)

    Embrace Moderation: Doses are kept at evidence-based clinical levels — not megadosed — to avoid the risks of excessive supplementation (6). No Vitamin A, no Vitamin E.

See the Full 26-Ingredient List, Benefits & Evidence
Ingredient Profile Benefit
Choline, B-Complex & Methylators
Choline Bitartrate 181.5mg, Methylated B12 & Folate, Thiamine, Riboflavin, Niacin, B6, Biotin, Pantothenic Acid.
Cognition & Focus (COSMOS-aligned) Aligned with COSMOS trial findings to support cognitive function. Includes choline and bioactive (methylated) B-vitamins — well-absorbed forms that suit common MTHFR gene variations.(1)*
Trimethylglycine (TMG) 500mg (Betaine Anhydrous) Methylation Support Trimethylglycine (betaine) is a naturally occurring methyl donor, included at a measured 500mg dose.(4)*
Vitamin C Calcium Ascorbate 45mg Antioxidant & Immune Support Provides antioxidant support to help combat free radicals and supports normal immune function.(8)*
Bone Density Complex
Encapsulated Vitamin K2 as K2VITAL® DELTA (MK-7 90mcg), Encapsulated Vitamin D3 as AlgeD3™ (1,000IU), Boron Glycinate (1mg).
Skeletal Strength Encapsulated D3 and K2 with boron, which support bone strength and healthy calcium use.(9)*
Magnesium Taurate 126mg (elemental) Muscle & Relaxation Magnesium with taurine — both well-absorbed forms — supporting normal muscle function and relaxation.(10)*
Essential Trace Minerals
Zinc Glycinate, Selenium Glycinate, Copper, Manganese, Chromium, Iodine.
Glycinate Chelation Delivered in gentle glycinate/chelated forms for high bioavailability (+43% vs gluconate) and easy digestion.(11)*
Hyaluronic Acid 200mg Hydrated Skin A clinically studied oral dose that supports skin moisture and elasticity from within.(3)*
Eye Carotenoids
Lutein 10mg + Zeaxanthin 2mg (from Lutemax® 2020).
Macular Pigment Density RCTs at this dose have shown significant increases in macular pigment optical density — the carotenoid layer that filters short-wavelength light in the retina. Encapsulated for stability against light and oxidation.(2)*
Lycopene 10mg (encapsulated, LycoBeads®) Antioxidant A carotenoid found in tomatoes, included for antioxidant support. Encapsulated for stability against light and oxidation.(7)*
No Vitamin A or E Excluded Only What You Need Intentionally excluded based on research suggesting potential risks associated with high-dose supplementation.(6)*
 

Why Encapsulation Matters

Five of the most fragile ingredients in MicroVitamin — Vitamin D3 (AlgeD3™), Vitamin K2 (K2VITAL® DELTA), Lutein, Zeaxanthin, and Lycopene — are delivered in encapsulated, microbeadlet forms.

Why? Fat-soluble vitamins and carotenoids degrade quickly when exposed to light, heat, oxygen, or moisture. In standard multivitamins, that means the dose on the label can be very different from what's left in the bottle by month two. Encapsulation creates a protective shell around each particle — so the doses on the MicroVitamin label are still there at the bottle's expiry date.

Quality Assurance

We’ve partnered with a USA supplement manufacturer called ‘Makers Nutrition’ to produce MicroVitamin. Their facilities are GMP audited and FDA registered, so you can be assured that MicroVitamin is meticulously produced and thoroughly tested for quality.

Below are the stamps of approval that Makers Nutrition qualify for:

Combined Nutrients for Unbeatable Value

MicroVitamin offers a streamlined approach to daily nutrition, combining essential vitamins and minerals into one convenient package.

Purchasing these nutrients separately would cost you roughly $118.21 per month, but MicroVitamin brings them all together for only $58.50 per month on a 3-month subscription.

Not only does MicroVitamin save you $59.71 per month, but it also eliminates the hassle of managing multiple supplements, ensuring you receive the right balance of nutrients to support your health without the extra cost.

Individual Cost MicroVitamin
Lutein + Zeaxanthin as Lutemax® 2020 (Doctor's Best)$7.50 Included
Lycopene as LycoBeads® (SuperSmart)$17.33 Included
Trace Minerals Glycinate (Smarter Vitamins)$9.59 Included
Magnesium Taurate (Double Wood)$9.97 Included
Encapsulated Vitamin K2 as K2VITAL® DELTA MK-7$14.99 Included
Encapsulated Vitamin D3 (Pure Encapsulations VESIsorb®)$11.13 Included
TMG 500 (Life Extension)$9.75 Included
Hyaluronic Acid (NOW Supplements)$16.60 Included
Methylated B-Complex (Pure Encapsulations)$13.25 Included
Choline (Pure Encapsulations)$4.75 Included
Boron (Nuricost)$3.35 Included
No Vitamin A or E
Total Cost $118.21 $58.50

Frequently Asked Questions

Is MicroVitamin vegan/vegetarian?

Yes, MicroVitamin capsules are vegan-friendly. The capsule shell is plant-based (no gelatin), and none of the 25 ingredients are animal-derived.

Why is there a smell?

The smell is a normal characteristic of the active ingredients themselves, not a sign that anything is wrong. Our manufacturers have confirmed it comes from the combination of choline bitartrate, the B-vitamin complex, and vitamin D — these nutrients have their own natural odour, and when they\'re together in capsules at clinical doses, that smell is what you notice when you open the bottle. It does not indicate degradation or affect potency.

How Should I Store The Pills?

Please keep your MicroVitamin pills in their original bottle. The Choline, TMG, and Hyaluronic Acid in the formula are hygroscopic, meaning they attract moisture. Keeping the pills in their airtight container helps prevent them from swelling.

What's Improved in MicroVitamin Formula Version 8?

There are some big upgrades in MicroVitamin formula version 8.

The headline change is the carotenoid stack. Lutein has been increased from 0.25 mg to 10 mg, lycopene from 0.3 mg to 10 mg, and zeaxanthin has been added at 2 mg. These are now at the doses used in eye-health trials — and all three are delivered in encapsulated forms (Lutemax 2020 and LycoBeads) so they survive the daily mix-and-drink without oxidising in the tub.

Dr Brad has also moved Vitamin D3 and Vitamin K2 to encapsulated forms — AlgeD3 and K2VITAL DELTA. Doses are unchanged, but the encapsulation protects these fat-soluble vitamins from light and moisture once the pouch is opened, so the amount on the label is the amount you actually get on day 60.

Vitamin C has been switched from ascorbic acid to calcium ascorbate. Same 45 mg dose, but calcium ascorbate is buffered, which makes it gentler on the stomach — useful for anyone who finds straight ascorbic acid sharp on an empty stomach.

Nicotinamide has been brought down from 35 mg to 16 mg (100% RDA), rather than pushing higher without a clinical reason to.

The mineral profile has been rebalanced toward the RDA: Copper has been doubled from 0.45 mg to 0.9 mg and Zinc lifted from 8.25 mg to 11 mg, both now at 100% RDA. Iodine has been pulled back from 112.5 mcg to 75 mcg — most people get plenty of iodine from diet, and Dr Brad would rather err on the conservative side here.

And of course there are no fillers or binders, and the vegetarian capsule is titanium dioxide free.

MicroVitamin is produced in the USA by an FDA-registered and GMP certified facility, so that you can be assured of its quality.

For more information, see the full changelog.

Why do I see dark flecks?

That's completely normal and a sign the formula contains the ingredients we list on the label. MicroVitamin includes three natural carotenoids: lycopene (which gives tomatoes their deep red colour), lutein, and zeaxanthin (the orange-yellow pigments concentrated in leafy greens and egg yolks).

Why is there a Prop65 warning?

Given that this is the first manufacturing batch of formula version 7, we were required to show California’s Proposition 65 warning.

Now that we have completed our first batch, and demonstrated with our Certificate of Analysis that this is a high quality product, for future batches we can remove the Prop65 warning.

Why Does A Serving Of MicroVitamin Require Multiple Pills?

To deliver the full spectrum of nutrients in effective doses, multiple pills per serving are essential.

Take Magnesium Taurate, for example. It comprises only 8% elemental magnesium.

To achieve the 126mg of elemental magnesium we aim for in MicroVitamin, we need to include over 1500mg of Magnesium Taurate alone.

This scenario is just one of many that highlight the necessity of multiple pills to encompass all the beneficial ingredients in effective, clinically studied dosages.

Why Doesn't MicroVitamin Contain Vitamin A or E?

In designing MicroVitamin, Vitamin A and Vitamin E were intentionally left out, based on research suggesting potential risks from high-dose supplementation. Specifically, some studies indicate that supplements containing high doses of beta-carotene, vitamin E, or vitamin A may carry more risk than benefit — particularly for people who already get enough of these fat-soluble vitamins from a balanced diet. Learn more about the research behind this decision here.

  • 5 stars: 425 (88%)
  • 4 stars: 44 (9%)
  • 3 stars: 13 (3%)
  • 2 stars: 2 (0%)
  • 1 star: 1 (0%)
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Simon H.
High quality science backed supplement

Probably the best multivitamin / mineral on the market. Thoughtfully formulated based on scientific evidence at safe, effective doses. Also great that Dr. Brad is willing to make adjustments to the formula if necessary based on emerging new evidence and has had it independently tested for quality which is reassuring.

Personally I find it easy enough to swallow the 5 daily capsules in one go with a good gulp of water.

Fast reliable delivery too.

J
James S.
I began daily intake upon receipt

I began daily intake upon receipt. Your focus and attention to optimal dosages intrigued me and though I’m only now 2 weeks into a new regimen of supplemental nutritional interests combined with home cooked meals…no fast food, no carry out Chinese buffet (still a tough one but over a year now). I’m confident with your product.

W
Ward S.
Finally the right doses, at an excellent price

For years I looked for a vitamin and mineral product that was appropriately dosed — not one blasting me with mega-doses I don't need, or the wrong mineral combinations that block absorption. Figuring it out myself got complicated fast, and buying all the separate ingredients made the cost astronomical.

What I love about MicroVitamin is that it has the right amounts I was looking for — at not just competitive but genuinely excellent prices. Shipping is fast and easy, the capsules are easy to take, and I've had no negative side effects. I train hard — 10+ hours a week between bodybuilding and running — so having a simple, well-formulated daily base alongside a good diet is exactly what I wanted. I couldn't recommend it more highly: both MicroVitamin and Sleep.

L
Laurent H.
I was first attracted after watching your YouTube channel and then pleasantly surprised by the

I was first attracted after watching your YouTube channel and then pleasantly surprised by the composition of your microvitamin. Your product does not overload the dosages, except for vitamins in which major deficiencies are common, such as B12 and vitamin D. Just like you, and as someone holding a diploma as a nutrition advisor, I believe we should first obtain vitamins and micronutrients through a good diet, with your multivitamin then coming in to complement it and greatly reduce deficiencies. Since I started taking your multivitamin, I have been feeling better, especially given my demanding night work as a professional firefighter paramedic. Many thanks for your product, Dr. Stanfield.
Hanselin Laurent.

E
Evis B.
I really like these multivitamins

I really like these multivitamins. The quality seems really good and I feel better taking them consistently.

P
Paul D.
I Shied Away From Commercial Multivitamins In The Past

I shied away from multivitamins in the past due to high doses of non-water soluble vitamins and minerals and the fact that I ate well. On top of that I knew the best bioavailable sources would most likely not condense into a single small pill, so when I discovered Dr. Brad Stanfield's 5-pill vitamin supplement with evidence-based compounds and dosages I was elated. It only took 40+ years to find an appropriate product on the open market. It figures it would take a Family Medicine Practitioner to research and care enough to find a high quality daily use multivitamin like MicroVitamin. Thank you, Doctor Stanfield

E
Ed S.
Love the product - Excellent quality and the purpose and authenticity are unmatched

Love the product - Excellent quality and the purpose and authenticity are unmatched.

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R
Robert Q.
As a University Professor I can appreciate the concepts of the mixture.

As a University Professor, I appreciate the frequently updated research findings, which serve as the basis of the Microvitamin mixture. As an amateur athlete, I appreciate the addition of several proven supplements such as Betaine (Trimethylglycine), an Hyaluronic Acid. In addition, the concept of making the salt or chaelator of one vitamin serve as part of another funtional compound (such as Magnesium Taurate.

D
Daniel C.
MicroVitamin is a real timesaver

I don't have to try and combine several different supplements together anymore. I appreciate the clinical studies and science behind the ingredient choices

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Sandra D.
Well Researched Supplement

I was immediately impressed by the dosages and not overdosing myself like other multivitamins out there. I've been very happy with MicroVitamin since I started taking it

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Nir E.
Very pleased

Really respect the scientific rigour that's been put into the design of MicroVitamin

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R
Rune S.
My genuine experience with MicroVitamin

I have been using Microvitamin for nearly 9 months now in addition to Dr. Stanfield's recommended intake of Psyllium Husk, Omega 3's and Creatine. It soon turned out to be a game changer for me when it comes to consistent energy levels and cognitive performance throughout my often challenging workdays. I am currently on a subscription of v.7 and will soon switch to MicroVitamin+ Powder as it includes both Psyllium Husk, Creatine and some additional promising ingredients.

P
Pieter D.
Micro-dosed and clear research

I like how this supplement is a supplement to a healthy diet, and doesn't overload the body with high doses of vitamins and minerals. Ingredients are well researched

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J
Josie C.
High quality product

Grateful to have a supplement that's well researched

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B
Bryan S.
Worth It

I had been following Dr. Brad and taking his advice on YouTube for a couple of years before he released MicroVitamin. I decided at the time not to buy it because I still had big bottle of a men's once-daily multivitamin I had been taking, plus a new bottle of hyaluronic acid capsules, TMG powder for my shakes, and a vitamin D3 supplement.

I had been concerned a bit because every multivitamin I had seen, including the one I was taking, had both vitamins A and E, and I didn't want to be megadosing on those, as Dr. Brad explains those are both very common and easy to get from diet.

I finally decided to get MicroVitamin and now I get all that good stuff. I know people think that 5 capsules hardly seems "micro," but it in fact cut down on my pill burden by 3 pills daily.

PS - Same with Sleep. I had been making my own version and Sleep cut it down by 2 pills nightly, plus a lot of the magnesium glycinate supplements also tended to have valerian root, which I haven't really heard anything about.

N
Nick W.
Constantly Updated Formula

The MicroVitamin formula is constantly updated as new studies come in

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J
J.B.
Meticulously Researched All Rounder Product

After extensive research on optimal vitamin dosages and absorption forms, I found this product to be a game changer! It simplifies my routine, saving time and money by covering all the essentials in one supplement. Now I only take this and a fish oil.

I fully trust Dr. Stanfield's meticulous approach to MicroVitamin. The fact that it's already on Formula 7 in such a short time shows his dedication to staying current with the latest research and his responsiveness to feedback from an active online community.

J
Joe R.
Helps to simplify the supplements I take

MicroVitamin combines many supplements that I was already taking into one product, making it much easier to manage. Plus, the formula is tweaked as new research comes in

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James M.
Minefield

In the minefield of health &well-being information and supplements it is reassuring to be taking a supplement that is evidence based, trustworthy and not overpriced.

R
R.P.
Perfectly dosed

I like that MicroVitamin doesn't megadose the ingredients

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C
C.H.T.
Very convenient and easy to take

Great product

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B
Bill K.
My experience with Micro Vitamins

Dr Stanfield,
I am 76 and eat a very clean diet more like Mediterranean minus grains and rice. I used to take various vitamins separately I am half way thru my first order and do notice a difference in my overall sense of wellness if that makes sense. I will subscribe to this product! ( I also watch all of your utube videos.

P
Paul D.
All-in one healthy diet supplement

Dr. Brad uses proven substances in appropriate doses in his MultiVitamin Multi-supplement formula. Dr. Brad researches for the latest proven molecules and Substances that have been proven effective through extensive trials. Why gamble when you can use science-based information for your health?

M
Michael S.
Best Supplement as it strictly follows the clinical guidelines

1. Why did you buy MicroVitamin?
After becoming interested in optimizing my lifestyle for ideal health and maximum healthspan, I was quickly overwhelmed by the huge amount of very conflicting advice you can find online. Being a scientist myself (PhD in Physics with specialization in Biophysics & statistical analysis), I quickly realized that most online sources seemed to pick out research that supported their narrative, while neglecting conflicting studies and without any regard for the weight of a study (i.e. human clinical trial vs. single-cell study).

I then found Dr. Brad Stanfield, who is much more conservative and very critical in his analysis of scientific evidence and therefore gave much better advice. This is also why I agree with the formulation with MicroVitamin, which is not true for pretty much any other supplement. Competitor usually contain by far too high doses, or unwanted additions like Vitamins A & E.

2. What has been your experience so far?

Great - the pills are super easy to use and I have not seen any unwanted side-effects.

3. What benefits have you noticed?
I am in the process of many lifestyle changes, but proper supplementation of my very healthy Mediterranean-Style, but vegan diet is a major point. I have noticed improvements in exercise performance, general well-being and sleep, which is awesome. I believe this is at least partly attributed to the supplements (Microvitamin, Psyllium Husk, Creatine, Protein, Omega-3)

4. Would you recommend MicroVitamin to your friends and family?
I have absolutely done that and my wife has started using it, too.

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Limited Supply, Maximum Quality

MicroVitamin is a new supplement, and as we ramp up production while ensuring the highest quality possible, there’s a supply shortage.

To allow as many people as possible to use MicroVitamin, we’ve put a limit of twelve bottles per customer.

We appreciate your understanding as we strive to provide the highest quality product for you and your loved ones.

A note from Dr Brad Stanfield, Primary Care Physician

My primary goal is to support the well-being of my audience, and I genuinely believe that MicroVitamin can provide benefits to those who need it. I can’t emphasize enough however that a balanced diet comes first, and I strongly advise you to consult with your healthcare provider before starting any supplement. Disclosure: Dr Brad Stanfield founded and owns MicroVitamin and earns from sales

References:

(1) Baker, L. D., Manson, J. E., Rapp, S. R., Sesso, H. D., Gaussoin, S. A., Shumaker, S. A., & Espeland, M. A. (2023). Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial. Alzheimer's & Dementia, 19(4), 1308–1319. https://doi.org/10.1002/alz.12767

(2) Stringham, J. M., Stringham, N. T., & O'Brien, K. J. (2017). Macular Carotenoid Supplementation Improves Visual Performance, Sleep Quality, and Adverse Physical Symptoms in Those with High Screen Time Exposure. Foods, 6(7), 47. https://doi.org/10.3390/foods6070047

(3) Hsu, T. F., Su, Z. R., Hsieh, Y. H., Wang, M. F., Oe, M., Matsuoka, R., & Masuda, Y. (2021). Oral Hyaluronan Relieves Wrinkles and Improves Dry Skin: A 12-Week Double-Blinded, Placebo-Controlled Study. Nutrients, 13(7), 2220. https://doi.org/10.3390/nu13072220

(4) National Institutes of Health (NIH). Dietary Supplements for Exercise and Athletic Performance: Fact Sheet for Health Professionals. https://ods.od.nih.gov/factsheets/ExerciseAndAthleticPerformance-HealthProfessional/#betaine

(5) Council for Responsible Nutrition. (2022). 2022 CRN Consumer Survey on Dietary Supplements. https://www.crnusa.org/newsroom/crn-reveals-survey-data-2022-consumer-survey-dietary-supplements

(6) Hamishehkar, H., Ranjdoost, F., Asgharian, P., Mahmoodpoor, A., & Sanaie, S. (2016). Vitamins, Are They Safe?. Advanced Pharmaceutical Bulletin, 6(4), 467–477. https://doi.org/10.15171/apb.2016.061

(7) Chen, J., Song, Y., & Zhang, L. (2013). Effect of lycopene supplementation on oxidative stress: an exploratory systematic review and meta-analysis of randomized controlled trials. Journal of Medicinal Food, 16(5), 361–374. https://doi.org/10.1089/jmf.2012.2682

(8) National Institutes of Health (NIH). Vitamin C: Fact Sheet for Health Professionals. https://ods.od.nih.gov/factsheets/VitaminC-HealthProfessional/

(9) Zhang, Y., Liu, Z., Duan, L., et al. (2020). Effect of Low-Dose Vitamin K2 Supplementation on Bone Mineral Density in Middle-Aged and Elderly Chinese: A Randomized Controlled Study. Calcified Tissue International, 106, 476–485. https://doi.org/10.1007/s00223-020-00669-4

(10) National Institutes of Health (NIH). Magnesium: Fact Sheet for Health Professionals. https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/

(11) Gandia, P., Bour, D., Maurette, J. M., et al. (2007). A bioavailability study comparing two oral formulations containing zinc (Zn bis-glycinate vs. Zn gluconate) after a single administration to twelve healthy female volunteers. International Journal for Vitamin and Nutrition Research, 77(4), 243–248. https://doi.org/10.1024/0300-9831.77.4.243

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