Bronson Vitamin K2 + D3 Review

Vitamin K2 MK-7 Plus Vitamin D3 is presented by Bronson as a two-nutrient capsule combining vitamin D3 and vitamin K2. The product description states that it delivers 5,000 IU of vitamin D3 and 90 mcg of vitamin K2 per capsule. The page explains that vitamin D, specifically D3, which the body makes from sunlight, is essential for absorbing the calcium people depend on as they age. It notes that without D3, a person may miss out on benefits from the calcium in their diet, and that many people begin taking vitamin D3 only after they experience signs of deficiency. The page further states that D3 should not be taken alone. According to the description, vitamin D ensures that calcium is absorbed, while vitamin K2, specifically as MK-7, which the page calls the most bioavailable form, directs calcium to areas such as the bones so it can be put to good use. The page adds that without K2, absorbed calcium may be deposited in the arteries, where it can lead to calcification or other issues. Bronson concludes that vitamins K2 and D3 are the perfect pair. The product listing highlights that the formula supports heart and bone health and that vitamin D supports immune system function. It is labeled non-GMO, gluten free, and soy free. The supplement facts list a serving size of 1 capsule with 60 servings per container. The suggested use is once daily, or as directed by a health professional, for adults. Vitamin D3 is listed as cholecalciferol at 125 mcg (5,000 IU), 625% daily value, and vitamin K2 is listed as menaquinone at 90 mcg, 75% daily value. Other ingredients are modified cellulose for the capsule, microcrystalline cellulose, magnesium stearate, and silicon dioxide. The page also includes a section about Bronson, which says the company has been providing families with quality products since 1960 and describes its products as pure, high quality vitamins backed by science. The page says Bronson vitamins have been consistently mentioned by top medical professionals since its inception in 1960. Warnings on the page advise consulting a health professional before taking the product when pregnant or nursing, taking medication, or planning a medical procedure. The page also states not to use the product if the seal under the cap is broken or missing, to store at room temperature, and to keep out of reach of children. The 60 count size is listed at 9.97 dollars, with other sizes of 120, 250, and 360 count available. The current listing shows the product as sold out.

Product Focus: Bone Health
Tier ⓘ
Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
Biohacker Mentions
Cost per month
$5

Study, Trial or Testing Result Summary

MembersHuman studies

This product gives vitamin K2 at 90 micrograms a day, the dose that in studies. Pooled analyses of trials in women after menopause with thinning bones found vitamin K2 spine and forearm bone density than control, with only mild side . …

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Review Totals and Summary

Members291 reviews
291 reviews · Walmart 208 · Bronson Vitamins website 83

Bronson Vitamin K2 + D3 capsules are generally -received by customers, with about 291 ratings across various stores. An impressive of reviews with star ratings give the product 4 or 5 stars, indicating . **What buyers say it did for them** customers report changes after taking these capsules. …

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Biohacker Summary

MembersWhat our biohacker panel says

The main ingredient here is vitamin K2, though only a panelists spoke about it, and it is paired with vitamin D3 as a smaller ingredient in this product. One panelist noted that K2 comes in MK-4 and MK-7 forms and matters for artery , and another said he has taken D3 with K2 together for over a decade. …

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RAL Summary

MembersThe tier and why

pooled analyses show vitamin K2 at the dose in this product spine bone density in women after menopause, and 291 counted reviews are .

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More Details

MembersBody systems · Combine with · Possible side effects

Body systems: Skeletal system. Combine with and possible side are for members.

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Supplement Facts

Vitamin D3 125 mcg · Vitamin K2 90 mcg
Supplement Facts
Serving Size 1 Capsule
Servings Per Container 360
Amount Per Serving% Daily Value
Vitamin D3 (as Cholecalciferol)125 mcg625%
Vitamin K2 (as MK 7 Menaquinone)90 mcg†
† Daily Value not established.

Other ingredients: Microcrystalline cellulose, modified cellulose capsule, magnesium stearate, silicon dioxide.

Directions: As a dietary supplement for adults, take 1 capsule daily, preferably with a meal or as directed by a healthcare professional.

Label source: Bronsonvitamins · Report a label change

Where to Buy

Bronson · Walmart
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Our articles on this subject

Graded October 26, 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.