Can Peanut Butter Help Prevent Falls In Seniors? A Study Looked Into That

Falls are one of the leading causes of fatal and nonfatal injuries — and loss of independence — among older adults. Building muscle strength is one of the most effective ways to lower risk, and nutrition plays an important role.  A new study suggests that consuming peanut butter daily may improve certain aspects of muscle function.  While eating more peanut butter isn’t a standalone solution for preventing falls, the findings highlight how diet, exercise, and environment work together to support strength and reduce injury risk.

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What the researchers found

A six-month randomized controlled study, published in the Journal of Cachexia, Sarcopenia, and Muscle, examined 120 older adults 65 and older at high risk of falls. Researchers randomly assigned participants to either consume 43 grams (about three tablespoons) of peanut butter daily or maintain their usual diet.

At baseline, researchers assessed:

• Physical function (walking speed and balance)
• Muscle strength (grip and leg strength)
• Sit-to-stand performance (how quickly participants could rise from a chair)
• Body composition (BMI, weight, and fat and lean mass)

The results: promising, but specific

Of the original group, only 108 participants (90%) completed the study. Among those who added peanut butter to their diet, researchers observed faster sit-to-stand performance and improved lower-body muscle power. However, there were no significant changes in walking speed, grip strength, or overall muscle mass. The main takeaway? Peanut butter may support muscle power, but it doesn’t necessarily improve overall strength or size.

Why muscle power matters for fall prevention

Muscle power refers to how quickly you can generate force, while muscle strength refers to how much force your muscles can produce. In simple terms, power is “how fast,” and strength is “how much.” After age 50, muscle loss (aka sarcopenia) accelerates, with older adults losing an estimated 8-15% of muscle mass and strength per decade. Physical functioning also declines significantly after age 65 by 50% or more.  Lower-body power is essential for everyday physical activities such as standing up, climbing stairs, and preventing falls. By strengthening your muscles, you can better support mobility and independence in later life.

The benefits of peanut butter

Peanut butter offers several health benefits, including:

• Fiber, which supports heart health, diabetes, and digestion.
• Healthy fats, which improve blood cholesterol, lower inflammation, and stabilize heart rhythm.
• A mix of minerals and vitamins, such as copper, magnesium, manganese, niacin, vitamin B6, vitamin E, and zinc.
• Plant-based protein, which supports muscle maintenance and is associated with a lower risk of chronic diseases.

Older adults can struggle to get the proper nutrients — especially protein — to support muscle power and strength. Plus, muscles can become less responsive to protein as you age (anabolic resistance), requiring more protein intake. That being said, peanut butter may work best as part of a nutrient-dense, protein-supportive diet.

But peanut butter isn’t a magic fix

As previously mentioned, the study found no improvements in overall strength or body composition from daily peanut butter intake. These findings reinforce the idea that improving age-related muscle loss and preventing falls requires a multifactorial approach — including adequate protein intake, resistance training, and proper recovery.

Tips for preventing falls and building strength

To support muscle strength and reduce fall risk, focus on these three strategies:

1. Prioritize a balanced, protein-rich diet: Eat lean proteins, legumes, nuts, and dairy. Consistency is key to reaping the health benefits. Remember that peanut butter is not a cure-all, but can be a convenient, accessible addition.
2. Incorporate strength and balance training: Add resistance training, chair stands, walking, tai chi, or yoga to your weekly exercise routine to improve muscle strength and power. Embracing a healthy diet is great, but without physical activity, you may not see much improvement in muscle power.
3. Create a safer living environment: Make sure your space is free of clutter, improve lighting, install a grab bar if needed, and purchase supportive footwear and assistive devices. When it comes to aging in place, your living environment should be set up to keep you safe.

Who might benefit the most?

While many people can benefit from a bit more peanut butter in their diet, it may be especially helpful for older adults at risk of falls, those with low appetite or protein intake, and individuals not currently engaging in structured strength training.

How to incorporate peanut butter into your diet

Looking for simple ways to add peanut butter to your diet? Here are a few tips to get you started:

• Spread it on whole-grain toast
• Add it to smoothies
• Pair with your favorite fruits, like apples or bananas

Remember, if you want to improve your muscle power, you’ll need to eat about two to three tablespoons of peanut butter daily, according to the study.

The takeaway

Peanut butter may support lower-body power, but it’s not a standalone solution. Healthy aging requires nutrition, movement, and a safe environment. Small, consistent habits can help older adults maintain strength, independence, and quality of life. So, the next time you’re grocery shopping, be sure to grab a jar of peanut butter.

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