Managing Middle-Age Weight Gain
If you’re an adult in the U.S., you can expect to gain 10 to 25 pounds between your 20s and your 40s. Starting between ages 30 and 40, you may find losing weight and exercising more challenging. This “middle-age spread” is a natural consequence of aging, not necessarily a sign that something is wrong.
Why Weight Increases with Age
- Slower metabolism: Chemical changes that power growth, movement, and health decline with age, while appetite and food intake often remain the same.
- Fat distribution shifts: Fat accumulates more around internal organs and less under the skin.
- Loss of lean muscle: Aging leads to gradual muscle loss.
- Reduced activity: Jobs and lifestyles that involve more sitting contribute to further fat gain and muscle loss.
Health Risks of Excess Weight
Those extra pounds raise the risk of many chronic diseases, including:
- Diabetes
- Heart disease
- Neurodegenerative diseases
Maintaining a healthy weight can help lower these risks.
Tips for Maintaining a Healthy Weight
1. Nutrition Strategies
With a slower metabolism, you’ll need fewer calories but still must get all essential nutrients.
Intermittent fasting: Restrict eating to a shorter window—for example, eight hours per day. Studies suggest it may help you eat less, keep weight off, and even boost metabolic health and longevity. Research in mice shows longer life and better health when meals are spaced out, even if calorie intake and diet composition remain the same.
2. Physical Activity
- Maintain an active lifestyle with daily walks or gym visits.
- Use a stand-up desk if you have an office job to replace sitting with standing.
- Incorporate small doses of exercise throughout the day to combat age-related changes.
For more suggestions on how to fight age-related weight changes, see the Wise Choices box.
Reference
Mitchell SJ, Bernier M, Mattison JA, et al. Daily fasting improves health and survival in male mice independent of diet composition and calories. Cell Metab. 2018 Aug 24. PMID:30197301.