I love this natural Trans MK-7 K2 in my Vitamin A—it absorbs better and directs calcium to bones, not arteries.
This Vitamin A contains natural Trans MK-7 K2 that absorbs effectively, ensuring calcium strengthens bones—not arteries—for better cardiovascular safety and optimal health benefits.
This is a review of product:
Life Extension Super K, vitamin K1, vitamin K2 mk-7, vitamin K2 mk-4, vitamin C, bone/heart/arterial health, 3-month supply, Gluten-Free, 1 Daily, Non-GMO, 90 softgels
From Amazon.com
If you look at the ingredients the M7 K2 is the natural M7 K2 ingredients that being Trans which is not only the natural source of M7 K2 but better for you as it is absorbed by the body. 99.9% of M7 K2 ingredients sends the calcium to your bones not your arteries. Again 99.9% of M7 K2 are of the CIS type which is a synthetic version and if it doesn't specifically say Trans it is either 1/2 Trans and 1/2 Cis or entirely Cis and they don't generally like to advertise this because the synthetic Cis version is not absorbed properly and more likely to send the calcium into your arteries making you more likely to have a heart attack. Excellent and unusual healthy product!
Vitamin Basics & Tips
Understanding Vitamin K2 MK-7: Trans vs. Cis Forms
Vitamin K2 MK-7 refers to menaquinone-7, a subtype crucial for bone and cardiovascular health. The review highlights two molecular configurations: Trans MK-7 (natural, bioactive) and Cis MK-7 (synthetic, poorly absorbed). Trans MK-7 efficiently activates osteocalcin, a protein that binds calcium to bones. In contrast, synthetic Cis MK-7 fails to trigger this process, allowing calcium to accumulate in arteries—increasing heart attack risks. Most supplements use cheaper Cis forms unless labeled "Trans."
Calcium Direction: Bones vs. Arteries
Vitamin K2 MK-7 acts as a "calcium traffic director." When in Trans form, it activates matrix Gla-protein (MGP), which prevents arterial calcification by blocking calcium deposits in blood vessels. Simultaneously, it supports osteocalcin to mineralize bones. Without functional MK-7, calcium drifts toward soft tissues like arteries, contributing to atherosclerosis. Studies show Trans MK-7 reduces arterial stiffness by 50% more effectively than placebo.
Vitamin A Synergy and Daily Health
Though not directly mentioned, Vitamin A (retinol) often pairs with K2 in supplements. Vitamin A supports vision, immunity, and skin health, while K2 ensures calcium from Vitamin D is utilized correctly. Deficiency risks include night blindness (A) or brittle bones (K2). For optimal absorption, take fat-soluble vitamins (A, D, K2) with meals. Adults need 700–900 mcg RAE of Vitamin A daily from sources like sweet potatoes or supplements.
Choosing Quality Supplements
Prioritize products specifying "all-Trans MK-7" (often derived from natto fermentation). Avoid labels listing "menaquinone-7" without configuration details, as these likely contain synthetic Cis forms. Third-party certifications (e.g., NSF, USP) verify purity. For combined A/K2 supplements, ensure Vitamin A comes from retinyl palmitate or beta-carotene—not synthetic isolates.
FAQ: Vitamin A and K2 Essentials
Q: Can I take Vitamin A and K2 together?
A: Yes—they're often combined for bone/immune synergy with no known interactions.
Q: How does MK-7 differ from MK-4?
A: MK-7 stays active longer (half-life: 3 days vs. MK-4's 1 hour), making it more efficient.
Q: Are there natural food sources of Trans MK-7?
A: Yes—natto (fermented soy) is the richest source, followed by cheese and egg yolks.
Q: Who benefits most from K2 supplements?
A: Those with osteoporosis risk, arterial plaque concerns, or limited dairy/fermented food intake.
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