How Many Calories Should I Eat to Lose Weight?
How Many Calories Should I Eat to Lose Weight?
Calorie needs vary with body size, age, sex, activity, health, medications and weight trajectory. A calculator provides an estimate, not a prescription.

A target must remain nutritionally adequate
W8MD considers usual intake, hunger, protein, fiber, medical conditions and the planned rate of change. Very-low-calorie diets require medical selection and monitoring. Repeatedly lowering calories in response to normal daily scale fluctuation can be unsafe.
Track trends over several weeks and reassess rather than chasing a perfect number.
How W8MD can help
W8MD physicians compare nutrition, activity, sleep, medical conditions, prior attempts, preferences, prescription options, coverage and cost. The goal is a plan that protects health and can be maintained rather than a temporary challenge.
Build an individualized W8MD plan
Brooklyn: 718-946-5500 · Northeast Philadelphia: 215-676-2334
Use the form only for a non-urgent callback request. Do not submit private medical, insurance, financial or other sensitive information.
Medical notice: Educational information only. The first visit is in person. Nutrition, activity and medication recommendations require individual evaluation. Eligibility, coverage, prices and results vary. Call 911 for an emergency.
Content reviewed for general accuracy by W8MD clinical leadership. Last reviewed September 2026.


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