Evidence-ranked education, food-first options, practical recovery estimates, and clear medical boundaries. No products are sold or endorsed here.Before changing supplements or fluid intake
Review kidney or heart disease, pregnancy or breastfeeding, medications, laboratory results, allergies, eating-disorder history, and other medical concerns with a qualified clinician or pharmacist.
PERSONAL PLANNING ESTIMATES
Understand why the range changed.
Daily protein range
No estimate is shown until the body weight is inside the supported adult range.
Daily total-water reference
This is the National Academies total-water reference from food and all beverages—not a required amount of plain water. Climate, activity, pregnancy, illness, and medical restrictions change needs.
Workout hydration range
This broad 0.4–0.8 L/hour planning range changes with heat, clothing, sweat rate, food, and tolerance. Drink to thirst and avoid forcing fluid. Long, hot, or high-sweat sessions may need an individualized electrolyte plan.
Rest between sets
The estimate is longer for heavy compounds and strength work so technique and output can recover. Add time when breathing, control, or readiness has not returned.
Recovery-day suggestion
This is a conservative training prompt, not diagnosis or medical clearance.
EVIDENCE LIBRARY
Read the reason, not just the rating.
14 guides
Strong evidenceProteinAn essential macronutrient that supplies amino acids for tissue maintenance and training adaptation.Food & supplements · Open full guide+Strong evidenceCreatine monohydrateA compound stored in muscle that helps rapidly regenerate energy for brief, high-intensity work.Food & supplements · Open full guide+Strong evidenceCaffeineA stimulant found in coffee, tea, energy products, some medicines, and many pre-workout products.Food & supplements · Open full guide+Moderate evidenceElectrolytesMinerals such as sodium and potassium that help fluid balance and nerve and muscle function.Food & supplements · Open full guide+Strong evidenceCarbohydrates around trainingThe body’s most accessible fuel for moderate-to-high intensity work.Food & supplements · Open full guide+Strong evidenceFiberNondigestible carbohydrate that supports digestive and cardiometabolic health.Food & supplements · Open full guide+Moderate evidenceOmega-3 fatty acidsEssential fats that include ALA from plants and EPA/DHA from seafood and marine sources.Food & supplements · Open full guide+Strong evidenceVitamin DA fat-soluble vitamin important to bone, muscle, and other body functions.Food & supplements · Open full guide+Moderate evidenceMagnesiumAn essential mineral involved in muscle, nerve, energy, heart, and bone function.Food & supplements · Open full guide+Limited evidenceMultivitaminsProducts combining multiple vitamins and minerals in widely varying amounts.Food & supplements · Open full guide+Strong evidenceHydrationMaintaining appropriate fluid balance across the day and during activity.Daily recovery · Open full guide+Strong evidenceSleepA core biological recovery process that supports attention, mood, health, and training readiness.Daily recovery · Open full guide+Strong evidenceRest between sets and rest daysPlanned recovery inside a workout and between demanding sessions.Daily recovery · Open full guide+Not recommendedPeptides and prescription compoundsA broad group that includes legitimate FDA-approved prescription medicines and unapproved products sold as “research” compounds. They are not ordinary supplements.Medical & research compounds · Open full guide+