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Why does the body need body fat?

Eric Olsen
Fitness
Your body needs some body fat to maintain good health. Fat is the body's primary source of stored energy, and you need at least some energy reserves to get you through tough times -- periods of physical stress such as pregnancy, growth, or an illness that prevents you from taking in sufficient calories.

As you grow older and the risk of wasting diseases such as cancer rises, stores of body fat play a role in improving survival through treatment or the course of the disease. Body fat also plays an important role in the metabolism of some hormones; thus women with too little body fat have low estrogen levels, interfering with fertility and increasing their risk of osteoporosis and fractures.
Lifefit: An Effective Exercise Program for Optimal Health and a Longer Life

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Lifefit: An Effective Exercise Program for Optimal Health and a Longer Life

An easy-to-follow programme for lengthening and improving lives. More than an exercise guide, this text is an effective tool for making meaningful lifestyle decisions to benefit long-term fitness. In...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.