Vitamin
B-Complex
A group of eight B vitamins that work together to support energy metabolism, nervous system function, and red blood cell production.
Moderate Evidence
Vitamin
Vitamin C
A water-soluble antioxidant vitamin essential for immune function, collagen synthesis, and iron absorption.
Updated February 20, 2026This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication regimen.
Related Supplements
Mineral
Iron
An essential mineral required for oxygen transport in blood and energy production, commonly supplemented for anemia.
Strong Evidence
Mineral
Magnesium
An essential mineral involved in over 300 enzymatic reactions, commonly supplemented for muscle relaxation, sleep, and stress support.
Moderate Evidence
Vitamin
Vitamin D3
A fat-soluble vitamin produced by the skin in response to sunlight, critical for bone health, immune function, and mood regulation.
Strong Evidence
Related Articles
foundations
Low Ferritin, Normal Hemoglobin? The Hidden Iron Gap Behind Fatigue
Ferritin can reveal iron deficiency even when hemoglobin is normal. Learn how low ferritin relates to fatigue, brain fog, and restless legs; who may benefit from testing; and how diet, cooking methods, and traditional practices fit in—plus why iron overload risk means testing matters.
7 min read
Moderate Evidence foundations
Vitamin C and Collagen Synthesis: What It Means for Skin, Wounds, and Connective Tissue
Vitamin C’s unsung role as a collagen cofactor: what research suggests for skin integrity, wound healing, and connective tissue—plus insights on amla, acerola, and camu camu.
7 min read
Moderate Evidence foundations
Homocysteine: What This Blood Marker Tells You About B Vitamins and Methylation
A focused guide to homocysteine as a marker of B‑vitamin status and methylation—what raises it, what it predicts, how food patterns may help, and where the evidence is strong vs. mixed.
8 min read
Moderate Evidence Health Disclaimer
This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication regimen.