Health Experts Tell Older Adults One Simple Thing That Makes the Biggest Difference

Cardiologists, nutritionists and other health professionals say the single most important thing older adults can do to protect their health is to move more — in ways that fit their abilities. Many experts pointed to regular, moderate exercise as the most impactful, achievable behavior with benefits for the heart, muscles, balance and mental health.

"If I could get my senior patients to do one thing, it would be to exercise a minimum of 150 minutes per week," said Dr. Dany Sayad, medical director for the Tampa General Hospital Heart & Vascular Institute’s General Cardiology Center of Excellence. The recommendation aligns with widely used public health guidelines and can include walking, chair yoga, pilates or other low-impact activities tailored to an individual’s mobility and medical conditions.

Exercise is linked to a broad range of health benefits, clinicians said. "Study after study shows that exercise helps with blood pressure regulation, cholesterol management, blood sugar regulation, weight maintenance, inflammation, stress, mortality, energy, stamina, sleep, cognitive ability, joint health, balance, mobility, immune system function and social interaction," said Dr. Eldad Einav, a cardiologist and obesity specialist. Specialists emphasized that the goal is regular movement rather than hours in the gym or training for endurance events.

Alongside physical activity, nutritionists urged attainable, targeted changes that address common age-related risks. Fiber, adequate protein, vitamin D and hydration emerged as priorities for older adults. Registered dietitian nutritionist Kathleen Garcia-Benson said fiber supports digestive health and regular bowel movements and is associated with a lower risk of colon cancer. She recommended easy swaps such as snacking on berries, adding ground flaxseed or chia seeds to oatmeal, or using a fiber supplement, while emphasizing that people should increase fluid intake when adding fiber.

Courtney Pelitera, a registered dietitian, highlighted the importance of protein to combat sarcopenia — the age-related loss of muscle mass and function. "A great way to preserve as much muscle as possible (besides regular exercise) is to make sure the diet is adequate in protein," Pelitera said. She encourages older adults to aim for at least 20 grams of protein or more per meal. Annette Snyder, another registered dietitian, noted that vitamin D deficiency is common in older adults because the body becomes less efficient at producing the nutrient from sunlight; food sources include fatty fish, egg yolks, fortified dairy products and certain mushrooms.

Hydration also commonly declines with age because the sensation of thirst diminishes. Registered dietitian nutritionist Colette Micko advised not relying on thirst alone to guide fluid intake and recommended a minimum of 48 ounces of water per day, drinking on a schedule, keeping fluids nearby and choosing hydrating foods such as fruits and vegetables.

Physicians said dietary patterns matter as much as individual nutrients. Dr. Katie Golden, a board-certified emergency medicine physician, recommended a Mediterranean-style eating pattern rich in fruits, vegetables, whole grains, lean proteins and healthy fats, and stressed the social and mental health benefits of sharing meals with friends and family.

Cardiologists also listed specific habits to avoid. "Seniors interested in maintaining cardiovascular health should pursue a heart-healthy lifestyle including avoidance of obesity, smoking and excessive alcohol consumption," said Dr. Philip Nimoityn, a clinical cardiologist in Philadelphia. He added that routine clinical screening can be augmented with additional tests to better stratify risk, naming apolipoprotein B, lipoprotein(a), and high-sensitivity C-reactive protein as useful blood markers. Nimoityn also cited the CT coronary artery calcium score as a tool for clarifying an individual's cardiovascular risk.

Experts cautioned against one-size-fits-all or extreme approaches. Many older adults encounter an overwhelming amount of health information, some from questionable sources, and clinicians said practical, evidence-based steps are preferable to fad diets or overly intense exercise regimens that may be inappropriate or unsafe for seniors.

Clinicians recommended combining modest, consistent physical activity with achievable dietary adjustments: prioritize fiber and protein, check vitamin D status, maintain hydration, choose whole and plant-forward foods, and stop or reduce smoking and excessive alcohol. They also advised patients to work with their clinicians to tailor exercise and nutrition plans to existing medical conditions and physical limitations and to discuss appropriate screening tests.

Taken together, the guidance reflects a focus on sustainable habits that protect cardiovascular, musculoskeletal and mental health while supporting independence and quality of life in later years. Small, regular changes — a daily walk, protein at each meal, extra fiber and steady hydration — can produce measurable benefits when maintained over time, clinicians said. Readers are encouraged to consult their own health care providers before making major changes to exercise or medication regimens.