Vitamins, minerals and nutritional adequacy
Understand when a nutrient question needs dietary advice, testing, treatment or a review of overlapping products.
- Vitamin B12, fatigue, testing and treatment
- Iron, ferritin and fatigue
- Vitamin K2 and D3 combinations
- Zinc and copper
- Selenium and thyroid-related claims
- Iodine and kelp products
- Folate, methylfolate and MTHFR
- Vitamin B6 and B-complex products
- Multivitamins, cognition and age-related claims
- Biotin and blood-test interference
- Electrolytes during exercise, heat and travel
- Vitamin D and appropriate testing
- Protein, low appetite and adequate nourishment