The libraryMetabolism

Lose Fat and Build Muscle

Body recomposition

Also called Lose fat, build muscle, Recomp, Skinny fat, Losing fat and gaining muscle

4 min plan88 min with every studyUpdated Sep 27, 2026

Who it's forA man who wants to lose fat and keep or build muscle at the same time, skinny fat included.

When to see a doctor
  • Very tired, feeling cold, putting on weight and constipated: see your doctor for a thyroid blood test.
  • More fat on your neck, upper back and belly with thin arms and legs, easy bruising, stretch marks or muscle weakness, most of all on steroid medicine: see your doctor.
  • Taking a medicine that may add weight, such as some steroids, antidepressants or beta blockers: talk to your doctor.
  • Overweight on the BMI and your waist is more than half your height, or you have prediabetes, high blood pressure, high cholesterol or sleep apnea: see your doctor.
  • Breathing that stops and starts in your sleep, gasping, and tired all day: see your doctor about sleep apnea.
  • Using anabolic steroids, now or before, or feeling hooked on them: see your doctor.
  • Eating very little, bingeing, worrying about your weight or shape much of the day, or never feeling big enough: see your doctor soon.
  • You have not exercised for some time, or you have a medical condition: speak to your doctor first.

I am not a doctor. This is not medical advice. This is self-education. Every dose on this page is the one a trial or a position stand used, quoted from the source. It is not a prescription. See a doctor first about the causes on the Check first list, and before anything in the With a doctor group.