Let me introduce myself. My name is Mark Sisson. I live and work in Malibu, California. In a past life I was a professional marathoner and triathlete. Now my life goal is to help million people get healthy.
Andrea Cespedes has been in the fitness industry for more than 20 years. A personal trainer, run coach, group fitness instructor and master yoga teacher, she also holds certifications in holistic and fitness nutrition. When you want to reach a healthy weight, trimmimg body fat is preferable to losing valuable muscle mass. An overweight teenager burns fat just like an adult, by making smart dietary choices and moving more. Skipping meals and exercising too much can lead to the loss of muscle as well as nutrient deficiencies that can have dire consequences for a growing body.
Calories provide energy, which we need to survive and perform daily activities. The calories we get from food and beverages allow us to breathe, walk, run, laugh and even pump blood. Calorie needs vary depending on age, sex, height and activity level. Calorie needs are often higher during the teenage years than any other time of life.
Kids, teens, and adults are usually bombarded with media messages about weight loss at the beginning of the new year. To be clear, there are no known dietary ingredients or supplement that measurably or consistently alter body composition or metabolism to result in loss of fat, or a change from fat to muscle. But there are several dietary ingredients that are often advertised to promote weight loss. However, weight loss products are fraught with false promises and health risks that should be evaluated seriously by parents and discussed with kids.