An estimate, not medical advice
Your daily target comes from the published research below and is usually within about 10% of what you really burn. Talk to a doctor or dietitian before a big change, or if you are pregnant or managing a health condition.
How your target is worked out
Calories at rest
Mifflin MD et al. Am J Clin Nutr, 1990
How accurate that is
Frankenfield D et al. J Am Diet Assoc, 2005
Calories and weight change
Hall KD et al. The Lancet, 2011
Protein, 1.8 g per kg
Morton RW et al. Br J Sports Med, 2018
Fat, 30% of calories
World Health Organization, Healthy diet