Author name: Emily Collins, Nutrition Researcher (Supplements & Superfoods)

Calculate elemental iron by form. “65 mg ferrous sulfate” delivers different elemental iron than “65 mg ferrous bisglycinate.” Includes RDA + deficiency-correction protocols. New evidence on every-other-day dosing may double your absorption. Math, not medical advice. Stoltzfus 2017 and Moretti 2015 changed iron supplementation: daily oral iron raises hepcidin (a hormone that blocks iron absorption) […]

Calculate a support stack for GLP-1 medications (semaglutide / Ozempic / Wegovy, tirzepatide / Mounjaro / Zepbound, liraglutide / Saxenda). Addresses the five most common nutritional gaps: dehydration, muscle loss, B12 depletion, constipation, sarcopenia risk. Math, not medical advice — coordinate with prescriber. Why GLP-1 users need supplement support: reduced appetite means reduced total nutrient

Plain curcumin has ~1% oral bioavailability — most of what you take is excreted. Branded formulations (Meriva, BCM-95, Theracurmin, Longvida, NovaSOL) claim 5-30× better absorption. Calculator shows which claims hold up vs which are marketing. Math, not medical advice. Why turmeric ≠ curcumin: dried turmeric root is only 2-5% curcuminoids. A 1,000 mg “turmeric extract”

Calculate your creatine dose by body weight for loading or daily maintenance. Most adults can skip loading and just take 3-5 g/day — saturation just takes 3-4 weeks instead of 5-7 days. Math from ISSN guidelines, not medical advice. Creatine monohydrate is the gold standard. 700+ studies, decades of safety data, ~$0.10/serving. The “advanced” forms

Choose between CoQ10 (ubiquinone) and Ubiquinol by age, statin use, and heart goal. After ~40, the body’s ability to convert ubiquinone to active ubiquinol declines — that’s where Ubiquinol justifies its 3× price. Under 40, ubiquinone works fine. Math, not medical advice. The 40+ rule: ubiquinone (cheaper CoQ10) converts to ubiquinol in the body, but