Research Library

Supplement Research

Evidence-graded guides for common supplements. Each article includes evidence level, study count, proposed mechanisms, and structured summaries.

50+
Supplement topics
Sleep · Mood ◐ Moderate
Magnesium for Sleep: Research-Based Evidence
8 RCTs on magnesium glycinate and citrate for sleep onset, quality, and duration in adults. Mechanisms include GABA modulation and cortisol reduction.
8 studies · Adults Read
Immunity · Bone ⭐ Strong
Vitamin D & Immunity: What the Research Shows
14 RCTs confirm Vitamin D3's role in innate and adaptive immune function. Deficiency is widespread and strongly linked to increased infection susceptibility.
14 studies · All ages Read
Cardiovascular · Brain ⭐ Strong
Omega-3 Fatty Acids & Heart Health
Meta-analysis summary on EPA/DHA's effects on triglycerides, inflammation markers, and cardiovascular event risk reduction.
20+ studies · Adults Read
Cognitive · Performance ◐ Moderate
Creatine for Brain Health & Cognitive Function
Beyond muscle: emerging evidence on creatine's role in cognitive performance, mental fatigue, and neuroprotection in aging adults.
11 studies · Adults Read
Gut Health · Mood ◐ Moderate
Probiotics: Gut-Brain Axis & Mood
What research says about probiotic strains, the gut-brain axis, and their downstream effects on mood, anxiety, and immune health.
15 studies · Adults Read
Energy · Neurological ⭐ Strong
Vitamin B12: Deficiency, Energy & Neurological Health
Strong evidence for B12's role in red blood cell formation, neurological function, and fatigue reduction in deficient populations.
16 studies · Adults 50+ Read
Energy · Blood ⭐ Strong
Iron Supplementation & Fatigue
Comprehensive review of iron deficiency anemia, its effects on energy and cognition, and evidence-based supplementation protocols.
18 studies · Women / Athletes Read
Stress · Sleep ◐ Moderate
Ashwagandha for Stress & Cortisol
A review of clinical evidence on ashwagandha (KSM-66, Sensoril) for cortisol reduction, stress perception, and sleep quality in adults.
9 studies · Adults Read
Immunity · Hormonal ⭐ Strong
Zinc & Immune Function
Zinc's essential role in immune cell development and function. Evidence on deficiency prevalence, supplementation protocols, and upper limits.
12 studies · All ages Read