Vitamin ReviewsVitamin DSenior uses D3+K supplement with all 3 K types to combat age-related deficiency per doctor's advice.

Senior uses D3+K supplement with all 3 K types to combat age-related deficiency per doctor's advice.

2025-08-31 Vitamin Reviews Categroy:Vitamin D Views:54


Elderly user adopts doctor-recommended D3+K supplement containing three K variants to resolve vitamin deficiency through enhanced absorption.


This review is from Amazon.com for product:


Peak Performance Advanced Vitamin D 10000 IU with All 3 Types of Vitamin K Capsules 10,000 IU Vitamin D3 and Vitamin K2, K1, MK-7 (MK7), MK4 Supplement. 60 Small and Easy to Swallow Pills


Boost D3 & K at 79: Fix Deficiency Now


I’m 79 years old and know my body doesn’t make D3 like it once did. My doc recommended I take D3 and K. There are all 3 types of K in this little guy. I will get my D3 levels checked soon and I expect to no longer be deficient.


Vitamin Basics & Tips


Vitamin D3 plays a crucial role in calcium absorption and bone health, particularly critical for seniors whose skin becomes less efficient at synthesizing it from sunlight. The combination with vitamin K (specifically K1 and K2 variants MK-4/MK-7) helps direct calcium to bones rather than arteries, supporting both skeletal and cardiovascular health.


There are three primary forms of vitamin K: K1 (phylloquinone) from leafy greens aids blood clotting, while K2 subtypes (menaquinones) from fermented foods and animal products regulate calcium distribution. The MK-7 form has longer bioavailability than MK-4. For older adults, D3+K2 supplementation becomes particularly valuable as both nutrient absorption and sun exposure typically decrease with age.


Regular blood tests (25-hydroxyvitamin D test) remain essential, as the National Institutes of Health recommends 600-800 IU daily for seniors, though deficient individuals may require higher doses under medical supervision. Dietary sources like fatty fish, egg yolks, and fortified foods complement supplementation strategies.



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Tags: vitamin d3 deficiency k2 supplements age-related absorption vitamin k types d3 level testing


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