Obesity affects a staggering percentage of American adults — 35% of men and 40.4% of women according to JAMA — and for decades BMI has been the go-to measurement tool. But BMI has a significant flaw: it only accounts for height and weight, completely ignoring the critical differences between fat mass, lean mass, visceral fat, intra and extracellular water, and bone mineral mass. This is where Body Composition Analysis — specifically the InBody technique — provides a far more complete and actionable picture of health. Knowing exactly what your body is made of changes the conversation from simply “losing weight” to strategically reducing fat mass while increasing lean muscle mass — two very different goals that require very different approaches.
Dr. Talerico uses InBody Analysis regularly with her clients and consistently finds that the majority need to reduce body fat while simultaneously building skeletal muscle. Research backs up two highly effective exercise approaches for achieving this: traditional bodybuilding-style training, which in a 10-week University of South Australia study produced a 4.1% decrease in body fat with 64% of weight lost being pure fat; and High Intensity Interval Training (HIIT), which an Ohio State University study found produced lower body fat percentages alongside significant cardiovascular improvement. Beyond exercise, four key factors drive meaningful body composition change:
- Nutrition — increasing healthy protein and fats through a Mediterranean, Paleo, or Ketogenic dietary approach, combined with improved digestion of these macronutrients
- Resistance exercise — stressing muscles through structured training to trigger the repair and growth cycle, ideally with a qualified personal trainer
- Hormones — IGF-1, growth hormone, and testosterone all signal muscle repair and growth after exercise; supporting these hormones through lifestyle is essential
- Sleep — Stage 3 NREM sleep is where 70% of growth hormone is secreted; poor sleep also reduces testosterone and elevates cortisol, a catabolic hormone that actively breaks down muscle