High-dose D3+K2 combats low sunlight; effective but shipment shortage noted.
Potent D3+K2 blend counters sun-deprived winters, but delivery discrepancy impacted rating. Works as intended.
This review is from Amazon.com for product:
GREENPEOPLE Vitamin D3 10,000 IU + K2 (MK-7) 200mcg with Coconut Oil Softgels | 300-Count 2-in-1 Formula for Bone Health & Immune Support | Enhanced Absorption, Non-GMO, Easy to Swallow
I've been taking D3 and K2 supplements for several years as part of my daily vitamin/supplement regimen.
I like that this product has double the typical dosage usually found in this type of combination. Living in the northeast it's almost impossible to get any natural production of these supplements from the sun for 5 to 6 months of the year. I didn't notice any adverse effects taking the product. The product listing indicated 180 softgels and 2 bottles of 90 each. I only received a single bottle, so I felt compelled to knock the rating down by a star to 4.
Vitamin Basics & Tips
Vitamin A plays a critical role in vision, immune function, and skin health. While this review focuses on vitamins D3 and K2, it's worth noting that vitamin A often works synergistically with these nutrients. Retinol (preformed vitamin A) from animal sources and beta-carotene (a provitamin from plants) are two primary forms. Adequate vitamin A supports night vision through rhodopsin production and maintains mucous membranes that defend against pathogens.
For individuals in low-sunlight regions like the Northeast, pairing vitamin D with vitamin A becomes particularly relevant. Vitamin D enhances calcium absorption – a process regulated by vitamin K2 – while vitamin A helps modulate immune responses during prolonged indoor periods. The recommended daily allowance for adults is 900mcg RAE for men and 700mcg RAE for women, achievable through foods like sweet potatoes, spinach, or cod liver oil.
Excessive vitamin A from supplements can cause toxicity symptoms like dizziness or liver damage, unlike beta-carotene from foods. Those using combination supplements should verify individual nutrient doses to avoid overlaps with multivitamins. Always consult healthcare providers when combining fat-soluble vitamins (A, D, E, K) due to their storage in body tissues.
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