Nutrition, Vitamins, Minerals

Biochemistry is free

This subject is open to everyone. Choose a condition or switch to another free subject.

Free Biochemistry Free Microbiology Plans

Nutrition, Vitamins, Minerals conditions

Kwashiorkor Marasmus Vitamin A Deficiency Vitamin A Toxicity Vitamin B1 (Thiamine) Deficiency (Dry Beriberi) Vitamin B1 (Thiamine) Deficiency (Korsakoff Syndrome) Vitamin B1 (Thiamine) Deficiency (Wernicke Encephalopathy) Vitamin B1 (Thiamine) Deficiency (Wernicke-Korsakoff Syndrome) Vitamin B1 (Thiamine) Deficiency (Wet Beriberi) Vitamin B12 (Cobalamin) Deficiency Vitamin B2 (Riboflavin) Deficiency Vitamin B3 (Niacin) Deficiency (Pellagra) Vitamin B3 (Niacin) Toxicity Vitamin B5 (Pantothenic) Acid Deficiency Vitamin B6 (Pyridoxine) Deficiency Vitamin B7 (Biotin) Deficiency Vitamin B9 (Folate) Deficiency Vitamin C (Ascorbic Acid) Deficiency (Scurvy) Vitamin C (Ascorbic Acid) Toxicity Vitamin D Deficiency (Adults) - Osteomalacia Vitamin D Deficiency (Children) - Rickets Vitamin D Toxicity Vitamin E (Tocopherol) Deficiency Vitamin E (Tocopherol) Toxicity Vitamin K Deficiency Zinc Deficiency (Acrodermatitis Enteropathica) Zinc Deficiency (Dietary)

Medical Disclaimer: The content on this site is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you think you may be experiencing a medical emergency, call 911 or your local emergency number immediately. Always consult a licensed healthcare professional with questions about a medical condition.

Artificial Intelligence Use: Portions of this site’s content were generated or assisted by AI and reviewed by Erik Romano, MD; however, errors or omissions may occur.

Analytics Disclosure: If you allow analytics cookies, Doctogenic uses Google Analytics, Microsoft Application Insights, and Microsoft Clarity to understand site usage, diagnose issues, review heatmaps and session replay recordings, and improve the service on pages where those tools are enabled. Clarity is not enabled on account, purchase, billing, checkout, Stripe-related, or admin pages. You can change this choice through Cookie preferences.

USMLE® is a registered trademark of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). Doctogenic and Roscoe & Romano are not affiliated with, sponsored by, or endorsed by the USMLE, FSMB, or NBME. Neither FSMB nor NBME has reviewed or approved this content. "USMLE Step 1" and "USMLE Step 2 CK" are used only to identify the relevant examinations.

© 2026 Roscoe & Romano. All rights reserved.