Unhealthy Very Low Calories Intake–the Biggest Loser

Unhealthy low net calories the biggest loser’s intake, make them lose massive weight, most of them due to muscles and fluid, and put their health at risk.

Aerobic Exercise to Lose Fat or Anaerobic–the Biggest Loser’s Shocking Training

To answer your question, the biggest loser’s exercise are almost anaerobic, which is not effective to fat loss. Aerobic exercise is a way to lose body fat.