Vitamin ReviewsVitamin DHigh-dose D3 with K2 MK-7 improved energy and libido—affordable, effective, and backed by recent studies.

High-dose D3 with K2 MK-7 improved energy and libido—affordable, effective, and backed by recent studies.

2025-07-14 Vitamin Reviews Categroy:Vitamin D Views:49


Upgrading to 20k IU D3 with K2 MK-7 enhanced vitality and libido—proving high-dose D3’s potential when paired correctly.


This review is from Amazon.com for product:


NOW Foods Supplements, Vitamin D-3 10,000 IU, Highest Potency, Structural Support*, 120 Softgels


20k IU D3+K2 Boost: Energy & Libido Results


Just a high dose of quality d3 from NOW, a company I usually buy from. I upped from 10k iu to 20k iu alongside K2 MK-7 (a must if you take a decent amount of d3) and the recent studies weren't lying, I had more energy and my libido somehow increased idk, could be placebo, but again, simple cheap high dose D3. 5/5


Vitamin Basics & Tips


Vitamin D3, a fat-soluble nutrient, plays a critical role in calcium absorption, immune function, and mood regulation. Pairing it with vitamin K2 MK-7 ensures calcium is directed to bones and teeth rather than arteries, reducing cardiovascular risks—a synergy highlighted in recent studies. High-dose supplements (e.g., 10k–20k IU) are often used to address deficiencies, especially in individuals with limited sun exposure or dietary intake.


While short-term high doses may boost energy and libido, long-term excessive intake can lead to toxicity. Regular blood tests are recommended to maintain optimal levels (30–100 ng/mL). Natural sources include fatty fish, egg yolks, and fortified foods, but supplements like NOW’s D3+K2 offer a practical alternative. Always consult a healthcare provider before drastically increasing dosages, as individual needs vary based on health status and lifestyle.



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Tags: vitamin d3 k2 mk-7 energy boost high-dose supplements now supplements


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