Snack-Sized Power: Daily Peanut Butter Boosts Muscle Function in Seniors

A six-month study at Deakin University followed 120 adults aged 65+, living independently and at risk of falls, who consumed about three tablespoons of peanut butter daily. Those in the peanut butter group improved lower-body muscle power, as shown by the five-times sit-to-stand test (about 1.23 seconds faster), but walking speed and overall strength did not improve. The group also increased protein and healthy fat intake without gaining weight. Researchers say peanut butter can be a convenient part of a broader program (including resistance and balance training) to help reduce fall risk, though the effect is modest. The study, published in the Journal of Cachexia, Sarcopenia and Muscle, was funded by The Peanut Institute.