Evidence-Based Supplements

topic

The supplements with the strongest evidence bases for specific outcomes include: creatine monohydrate (strength, power, cognitive performance, particularly in aging); vitamin D (deficiency correction, immune function, bone health — warranted for the majority of adults with insufficient sun exposure); omega-3 fatty acids EPA/DHA (cardiovascular risk reduction, anti-inflammatory effects, neurological support — especially in low-fish consumers); magnesium (sleep quality, muscle function, blood glucose — warranted for most people eating processed diets); vitamin B12 (essential for plant-based dieters); and probiotics (strain-specific evidence for specific conditions).

Role

Evidence-based supplementation represents a very small fraction of the total supplement market — with perhaps 10–15 specific supplements having genuine evidence for meaningful outcomes in defined populations, compared to hundreds of products generating billions in revenue with either insufficient evidence or direct evidence of ineffectiveness. The person who supplements based on evidence rather than marketing takes a fundamentally different approach: identifying specific deficiencies or elevated needs through blood work and dietary analysis, selecting supplements with clinical evidence for those specific targets, and treating supplementation as the residual correction of a primarily whole-food dietary foundation rather than as the foundation itself.

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