Health tool map

Nutrition

Calories, nutrients, hydration, and dietary planning.

Choose the tool whose inputs and output match your task. Check each calculator’s assumptions and limitations before using its result.

Adult Protein Reference Calculator

Apply either the adult DRI 0.8 g/kg/day population reference or the 1.4–2.0 g/kg/day healthy-exercising muscle context.

Calculate albumin globulin ratio from albumin and total protein, with exact globulin formula, reference ranges, interpretation cautions, and sources.

Calculate UK alcohol units and pure alcohol volume independently from serving volume and label ABV.

Calculate anion gap with optional potassium and albumin correction, using the exact electrolyte formulas and clinical interpretation cautions.

Total caffeine from selected servings and labeled add-ons, with population-qualified FDA and ACOG context.

Model how a user-selected calorie subtraction changes an equation-based energy estimate without treating the result as a prescribed intake.

Estimate predicted resting energy expenditure from age, sex, height, and weight using the page's Mifflin equations.