Myth: Muscle turns into fat. Fact: As people age they tend to become “flabbier” due to loss of muscle tissue and increases in body fat. As muscle is lost the body needs fewer calories to maintain the same weight. Additionally, many people decrease their daily activity as they age. This further reduces calorie requirements. If people continue to consume calories at their old rate, the extra calories are stored as fat. Regardless of appearance, muscle never transforms into fat.