Tong Xia, M.D., Ph.D., and her team at Brigham and Women's Hospital in Boston have identified two dietary approaches that could fundamentally shift how women navigate weight management during menopause—a time when the body's metabolism shifts dramatically and weight gain accelerates for many. The findings, published in JAMA Network Open, come from one of the largest studies of its kind: 38,283 women tracked over 12 years as they passed through menopause.
The research matters because menopause represents a pivotal health moment. During this transition, women face a convergence of hormonal, metabolic, and lifestyle changes that make weight gain nearly inevitable for many. Extra weight gained during menopause doesn't simply affect appearance; it compounds the risk of heart disease, diabetes, and other chronic conditions that intensify after menopause. Yet most clinical guidance offers little specificity about what to actually eat during this phase of life.
Xia's team analyzed dietary patterns and tracked which ones correlated with the smallest weight gains and lowest obesity risk. They examined two complementary approaches: low-insulinemic diets (foods that don't spike blood insulin) and planetary health diets (eating patterns designed to nourish both human and environmental health). The results were striking. Women who most closely followed a low-insulinemic pattern gained significantly less weight—a mean reduction of 0.28 kilograms per year compared to those who followed it least. For context, that modest annual difference compounds into several kilograms of protection over a decade.
The planetary health approach proved equally powerful. Women adopting this diet pattern had a hazard ratio of 0.46 for developing obesity—meaning they faced less than half the obesity risk of those who didn't follow it. The low-insulinemic pattern showed a hazard ratio of 0.51, also cutting obesity risk nearly in half.
What makes these diets work? The details matter. The low-insulinemic pattern discouraged foods that spike blood sugar and insulin: red meat, processed meat, sodium-heavy foods, and French fries topped the list of items associated with weight gain. The planetary health diet, by contrast, emphasized whole foods: nuts, unsaturated fats like olive oil, whole-grain carbohydrates, and plant-based proteins. Neither approach required extreme restriction or elimination—both focused on swapping high-impact foods for nutrient-dense alternatives.
The researchers were careful to account for confounding factors—adjusting their analysis for age, race, marital status, income, hormone therapy use, smoking, alcohol consumption, physical activity, and baseline weight. This rigor strengthens confidence that diet, not other life changes, explained the difference in outcomes.
"Incorporating this dietary guidance into routine midlife care may help prevent obesity and support long-term cardiometabolic health in women," Xia and colleagues concluded. The implication is clear: menopause doesn't have to mean inevitable weight gain. With two evidence-backed dietary blueprints now available, women and their doctors can approach this transition with concrete, science-backed strategies. For millions of women entering their fifties and beyond, that represents a genuine shift in what menopause could look like.