Advertisement

Why does the metabolism slow down after 40?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Many factors determine how fast or slow one metabolizes food. Dr. Oz reveals the contributors to metabolism speed in this video.




Lona Sandon
Nutrition & Dietetics

Your basal metabolic rate, how many calories you burn for physiological processes, slows down with age and the loss of lean muscle mass that happens with getting older. The decrease may be 2-3% with each decade.

You can help stop some of this slow down by staying active and including strength training in your daily exercise plan to maintain muscle. Eating enough protein is also important to keep muscle on board as you get older. Choose lean proteins such as eggs, lean meats. low fat dairy, beans, and legumes daily. 

Sari Greaves
Nutrition & Dietetics
One factor why the metabolism slows down after 40 is the loss of muscle mass with age. Muscle is more metabolically active than fat tissue, so when you have more lean body mass, you burn more calories. In women, estrogen levels drop after menopause, which causes thyroid hormones that regulate metabolism to go down too.

Continue Learning about How The Metabolic Process Works

What are some factors that increase your metabolism?
Lona SandonLona Sandon
Your basal metabolic rate is the rate at which your body uses energy for basic life functions like b...
More Answers
How can I increase my metabolism?
Dr. Andrea Pennington, MDDr. Andrea Pennington, MD
You can naturally rev up your metabolism by eating 5 or 6 small meals and snacks each day. Diabeti...
More Answers
What role do mitochondria play in aging and disease?
Dr. Mehmet Oz, MDDr. Mehmet Oz, MD
Picture these mitochondria as your body's nuclear power plants. They give off a lot of energy but al...
More Answers
How Can I Boost My Metabolism If I'm a Woman Over 40?
How Can I Boost My Metabolism If I'm a Woman Over 40?

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.