A Beginner’s Checklist for Comparing Supplement Labels

Four details to write down

1. Full ingredient name. Two bottles labeled magnesium may list different forms.
2. Amount per serving. Check whether the listed serving is a capsule, several capsules or a scoop.
3. Servings per package. Divide capsule count by capsules per serving. A 90-capsule bottle at three per serving contains 30 servings.
4. Other ingredients. Read the complete list if you are avoiding a particular ingredient or want an unflavored product.

Try the comparison with one nutrient

Pick two products from the magnesium collection. Write down the form and the listed magnesium amount for each. Only after matching those details compare price per serving. If the formulas are too different to compare, the vitamin and mineral catalog can help you narrow the search.

For category and pricing examples, see our biohacking supplement buyer’s guide.