Vitamin D Supplement
This product excels in effectiveness with clinically validated doses of vegan D3 (5000 IU) and MK-7 (100 mcg), backed by extensive RCTs/meta-analyses for bone density (+1-2% BMD), immune support (RR 0.88 for infections), and arterial health. Safety is robust with no product-specific AEs and strong trial data (e.g., no toxicity in 3200-4000 IU D3 over years). Quality is solid via third-party testing and certifications but lacks elite athlete-tier like NSF Sport, slightly lowering score. Overall,
Sports Research Vitamin D3 K2 delivers evidence-based doses (5000 IU D3 + 100 mcg MK-7) matching 100+ RCTs for bone/immune benefits with excellent vegan sourcing and third-party testing. Safe profile with no FDA concerns makes it a top choice for deficiency correction. Minor deduction for lacking NSF Sport certification.