A Note on Supplement Dosage Information

Dosage ranges listed on Zynava are compiled from published clinical studies, established Recommended Dietary Allowances (RDAs), and Tolerable Upper Intake Levels (ULs) set by the National Institutes of Health. These ranges represent what has been studied in research settings and should not be interpreted as specific dosage guidance for you. Optimal dosage depends on many individual factors including age, sex, body weight, diet, health status, and what medications you take.

More is not always better with supplements. Exceeding recommended dosages can lead to adverse effects, nutrient imbalances, or toxicity — particularly with fat-soluble vitamins (A, D, E, K) and certain minerals like iron and selenium that accumulate in the body. Start with the lower end of studied dosage ranges and consult your healthcare provider before increasing doses. Zynava provides dosage information as a starting point for discussion with your doctor, not as a prescription.