Tools

Free calculators built on the same evidence base as the rest of the site. No sign-up, no email, and every number comes with its source and its limits.

• HOMA-IR calculatorEstimate insulin resistance from fasting glucose and insulin — in mg/dL or mmol/L.
• Protein calculatorYour daily protein range from body weight, and what it means per meal.
• Fiber calculatorYour daily fiber target by age and sex, and how to reach it without the bloating.