A line-by-line walkthrough of a supplement label: serving size, amounts, %DV and NRV, elemental minerals, blends, other ingredients, dates and seals.
Why 500 mg of magnesium oxide and 500 mg of glycinate hold very different amounts of magnesium, how to find the elemental figure, and what to check first.
Find EPA and DHA on any omega-3 label, check serving size, work out cost per 1,000 mg, and know what to check on cod liver, algae and plant oils.
What USP Verified, NSF Certified for Sport and Informed Sport actually check, how to confirm a seal on the register, and when a seal is worth paying for.
Six label checks to compare any collagen product fairly: form, grams per serving, source, testing, added ingredients and true cost per gram.