Healthy Aging

A Longevity Diet Study Complicates the ‘More Protein’ Message

A new mouse study suggests protein source and amino acid balance may matter for healthy aging, but the findings do not prove people should eat less protein or take methionine supplements.

Fruit Juice Habits Linked to Higher Blood Pressure Risk

A long-term study found that people who drank more sugary beverages and fruit juice from childhood into adulthood were more likely to report high blood pressure as adults, while whole fruit was linked to lower risk.

Fish Oil Supplements May Not Deliver on Brain Health Promise

A two-year clinical trial found that high-dose DHA supplements raised omega-3 levels in the brain but did not improve memory, cognition or Alzheimer’s-related brain shrinkage.

Exercise and Protein May Help Support Recovery After Hospitalization

A small pilot study found that a combined movement and protein program was feasible and well tolerated among frail older adults in skilled nursing facilities.

Hormone Therapy Studies May Reflect More Than Hormones

A large observational study found differences in diet, strength activity and sleep across menopause and hormone therapy groups, but the results do not show that hormone therapy caused healthier habits.

Cow’s Milk and Plant-Based Milks Are Not Nutritional Twins

A dairy-funded narrative review argues that cow’s milk has nutritional advantages tied to its natural structure, but the bigger takeaway may be that milk choices vary widely and labels do not tell the whole story.

New Obesity Drug Guidance Says Medication Is Only Part of the Plan

A new American College of Physicians guideline recommends semaglutide and tirzepatide as first-line medication options for eligible adults, but says nutrition, physical activity, side effects, access and personal health goals still matter.

Weight Loss Drugs Are Not All the Same, a New Review Suggests

A review of clinical trials found tirzepatide was linked with greater average weight loss than semaglutide or liraglutide in adults without diabetes, but the findings do not mean one medication is right for everyone.

Lifestyle Changes for Prediabetes May Support Health Decades Later

A long-term follow-up of the Diabetes Prevention Program links intensive lifestyle changes to a lower burden of multiple chronic conditions in older age.

Supplements Have Moved Beyond the Daily Multivitamin

A new national analysis finds U.S. adults are using more supplements, with growing interest in products marketed for immune, gut, skin, joint and inflammation-related health.

Vitamin C Levels Were Linked to Differences in the Aging Brain

A study of more than 2,000 older adults found associations involving gray matter volume and brain connectivity, but it does not show that vitamin C prevents cognitive decline.

Weight Regain May Not Erase Every Metabolic Benefit

A long-term follow-up of two lifestyle trials found that reductions in fat stored around the organs were associated with a lower risk of type 2 diabetes years later, even as average body weight returned to baseline.

Protein Claims Are Everywhere. The Science Is More Complicated.

A critical review of common protein beliefs found promising evidence for some ideas, but major gaps remain behind many confident recommendations.

Summer Sunlight May Not Correct Low Vitamin D Levels for Everyone

A small study from northern Britain found that low vitamin D levels remained common among older adults and adults with darker skin, including during the summer months.

Protein-Rich Foods May Help Support Strength as Adults Age

In a large study of older adults, lower intake of protein-rich foods was linked with higher odds of reduced grip strength and difficulty with everyday activities.

Could Guava Juice Help with Iron Levels? What the Evidence Shows

A new review suggests guava juice may boost hemoglobin when paired with iron supplements, but experts say it is not a replacement for anemia treatment.

Structured Healthy Habits May Help Older Adults Reduce Frailty

A two-year randomized clinical trial found older adults at risk for cognitive decline improved more on a frailty measure when lifestyle changes included coaching, goal setting and accountability.

Weight Loss Did Not Ease AFib Symptoms in Older Adults

A randomized clinical trial found a low-calorie diet program helped older adults with overweight lose weight safely, but it did not improve persistent atrial fibrillation symptoms or rhythm outcomes.

Calcium and Vitamin D Supplements May Not Prevent Falls or Fractures

A large BMJ review found routine supplements offered little to no meaningful benefit for most older adults, but the findings do not mean calcium and vitamin D are unimportant.

Creatine’s Performance Benefits Are Clearer Than Its Inflammation Claims

A review of human clinical trials found little evidence that creatine meaningfully lowers common inflammatory markers, even though the supplement remains well supported for some exercise-related benefits.

Does Yo-Yo Dieting Really Ruin Your Metabolism?

An expert analysis argues that repeated weight loss and regain may not cause the lasting metabolic damage many people fear, though weight regain can still reverse some health gains.

What a Grape Study Really Shows About Skin Health

A short human study found that eating grapes was linked to changes in skin gene expression, but it did not show that grapes replace sunscreen or prevent sun damage.

Weight Loss Is Not Just About Fat Loss

A conference-presented review suggests obesity drugs and surgery may lead to a higher share of fat-free mass loss than diet and exercise, but the findings are still awaiting full journal peer review.

Cutting Back on Alcohol May Reverse Some Health Risks

A new review finds alcohol contributes to a wide range of diseases and injuries, but some risks may fall when people reduce or stop drinking.

Can a Month of Diet Changes Really Make You ‘Biologically Younger?’

A small randomized trial in older adults found that four weeks of dietary changes improved some biomarkers tied to biological age, but that does not mean aging itself was reversed.