vitamin-d
Vitamin D3 5000 IU
Bluebonnet provides a high-quality Cholecalciferol (D3) in a lipid-based softgel, housed in amber glass to prevent photo-oxidation. It earns a silver tier for its clean label and reputable manufacturing, though it lacks the synergistic Vitamin K2 (MK-7) and third-party seals (USP/NSF) required for the gold standard.
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Thorne
Basic Nutrients 2/Day
NSF Certified for Sport. Uses bioavailable forms (methylfolate, methylcobalamin, chelated minerals). No unnecessary additives. Trusted by Mayo Clinic and Olympic teams.
Pure Encapsulations
O.N.E. Multivitamin
Hypoallergenic formula free of all common allergens. Metafolin (5-MTHF) for methylation. Sustained-release CoQ10. One capsule daily simplifies compliance.
Nordic Naturals
Ultimate Omega
IFOS 5-star certified for purity. Triglyceride form for 70% better absorption than ethyl ester. 1280mg EPA+DHA per serving. No fishy burps.
Carlson
Vitamin D3 2000 IU
USP verified for potency and purity. D3 (cholecalciferol) is the form your body makes from sun. Single ingredient with no fillers.