National Nutrition Month Launches as Studies Spotlight Diet’s Impact on Heart Health

A large-scale prospective study following more than 105,000 women for an average of 21 years found that those who most closely adhered to a Mediterranean-style diet were 18% less likely to experience any type of stroke. Published February 4, 2026 in Neurology Open Access, a journal of the American Academy of Neurology, the research also recorded a 16% lower risk of ischemic stroke and a notable 25% lower risk of hemorrhagic stroke — a rarer but often more severe type involving bleeding in the brain.

Participants were scored on a nine-point Mediterranean diet adherence scale, earning points for above-average consumption of whole grains, fruits, vegetables, legumes, olive oil, and fish, as well as for below-average consumption of red meat and dairy. The study tracked 4,083 total stroke events, including 3,358 ischemic and 725 hemorrhagic cases. All participants had no history of stroke at enrollment.

Lead researcher Dr. Sophia S. Wang of City of Hope Comprehensive Cancer Center noted the particular significance of findings related to hemorrhagic stroke, which has been understudied in dietary research. The study does not establish direct causation but adds to growing evidence that plant-rich, anti-inflammatory diets may serve as a meaningful tool in long-term stroke prevention.

A comprehensive scientific review published in the peer-reviewed journal Nutrients analyzed more than 52 studies conducted between 2000 and 2025 and found consistent evidence that regular pecan consumption improves key cardiovascular health markers. Conducted by researchers at the Illinois Institute of Technology, the review found that people who regularly ate pecan-sized portions experienced improvements in total cholesterol, LDL (“bad”) cholesterol, triglycerides, and non-HDL cholesterol.

Researchers attribute these benefits to pecans’ rich content of unsaturated fats, vitamin E, and polyphenols — plant-based antioxidants that may reduce lipid oxidation and support healthier post-meal lipid metabolism. The review also noted that people who regularly include pecans in their diet tend to score higher on the Healthy Eating Index, suggesting an association with overall better dietary quality.

Beyond cardiovascular effects, early findings cited in the review hint at potential benefits for satiety, gut microbiome health, and cognitive function, though researchers emphasize these areas require further investigation. The analysis builds on over two decades of accumulated data and positions pecans as a nutrient-dense option within heart-healthy dietary patterns.

March 1 marked the official launch of the Academy of Nutrition and Dietetics’ annual National Nutrition Month® campaign, celebrated every March since 1980. The theme for 2026, “Discover the Power of Nutrition,” encourages people at every stage of life to explore how food and nutrients support physical energy, cognitive performance, recovery, and overall well-being.

Academy Spokesperson and registered dietitian nutritionist Jen Bruning emphasized that optimal nutrition underpins nearly every human function — from learning and athletic performance to sleep and healthy aging. Spokesperson Angel Planells added that balanced, varied food choices benefit children, adults, and older adults alike, noting the importance of rotating foods throughout the week to ensure a wide range of nutrients.

The Academy also highlighted that good nutrition does not require a large budget. Spokesperson Theresa Gentile stressed the importance of practical cooking skills, community support systems, and advocacy for equitable access to healthy food. The National Nutrition Month hub at eatright.org includes science-backed resources, including a Nutrition Fact Check series covering trending topics such as seed oils, food dyes, and ultra-processed foods.