Reasons you may need to supplement
Decreased nutrient levels in foods due to modern agriculture
Impaired digestion and absorption
Increased requirements as a result of certain health conditions
Increased requirements during certain periods (e.g., adolescence, pregnancy, lactation)
Low dietary intake and/or poor-quality diet
Nutrient depletions associated with medications (e.g., oral contraceptives, proton pump inhibitors, statins)
Nutrient loss occurring as a result of aging or critical illness