Muscle Loss and Protein Needs in Older Adults
As we age, it becomes more difficult to maintain or build muscle. This natural process, known as sarcopenia, can affect nearly half of adults over 80. Sarcopenia leads to weaker muscles, reduced mobility, and a higher risk of falls and health complications. Fortunately, combining strength training with adequate protein intake can help slow this decline and preserve muscle mass.
Understanding Your Protein Needs
How much protein you need depends on your age, weight, and activity level. On average, adults should consume 0.36 grams of protein per pound of body weight per day. For example, a 165-pound person needs about 60 grams daily. However, nearly half of older adults fall short of this target, making it harder to maintain muscle mass.
Be cautious not to go overboard—excess protein (more than 0.9 grams per pound of body weight) can lead to dehydration and kidney issues, especially in people with pre-existing kidney conditions.
Getting More Protein from Food
You can boost your protein intake by eating more of the following:
– Lean meats and poultry
– Fish and seafood
– Dairy products (milk, yogurt, cheese)
– Eggs
– Beans, peas, lentils
– Nuts, seeds, and soy products
Aim to include protein in every meal. Spreading protein intake evenly throughout the day is more effective for building and maintaining muscle than loading it all at once.
Should You Use Protein Supplements?
Whole foods are the best way to get protein. But if you’re struggling to eat enough, protein powders can help. They are convenient and can be added to smoothies, oatmeal, or even coffee. Always read labels carefully—some powders are high in sugar or additives.
Types of Protein Powders
– Whey: Fast-digesting, high-quality, and effective for building muscle in older adults.
– Casein: Slower digesting, also from dairy.
– Plant-Based: Made from peas, soy, or rice. These are good for those avoiding dairy but may be less effective due to lower bioavailability.
Why Exercise Matters Too
Protein alone isn’t enough. Strength and resistance training are key for preserving and rebuilding muscle. Research shows that the combination of protein supplementation and regular resistance training is the most effective way to fight muscle loss in aging adults.
In summary, aging adults can support muscle health by combining a protein-rich diet with strength training. Talk to your doctor to find out your specific protein needs and whether supplements are right for you.
Summary
• Muscle loss (sarcopenia) is common with aging and affects nearly half of adults over 80.
• A balanced intake of protein helps repair and grow muscle, especially when combined with resistance training.
• Most older adults don’t consume enough protein—aim for at least 0.36 grams per pound of body weight daily.
• Too much protein can cause issues for people with kidney problems, so consult your doctor if needed.
• Whole foods are best, but protein powders can help supplement your diet if necessary.
• Whey protein is shown to be particularly effective in older adults.
• Regular strength training is essential for maintaining mobility and independence.
Adapted and simplified from Harvard Health Publishing. Original article by Jenette Restivo, Health Writer at Harvard Health Publishing. Reviewed by Dr. Howard E. LeWine, Chief Medical Editor.
