New 2026 research from the Raine Study shows young men who eat more legumes and young women who eat more cruciferous vegetables have substantially lower odds of early cardiometabolic risk markers, offering a practical, sex-specific dietary insight for long-term heart health.
Key Takeaways by Planet Today:
Early risk markers appear sooner than expected: Roughly one in five 22-year-olds already showed two or more cardiometabolic warning signs, underscoring why diet choices in the early twenties can shape decades of heart and metabolic health.
Sex-specific vegetable advantages stand out: Each extra daily 75 g serve of legumes cut men’s odds of high risk by about 72 percent, while the same increase in cruciferous vegetables reduced women’s odds by roughly 85 percent after full adjustments.
Small daily changes carry outsized long-term weight: Researchers note that consistent, modest servings of the right vegetables may help delay or blunt the rise of metabolic syndrome, type 2 diabetes and cardiovascular disease that often accelerates later in life.
Hormonal and metabolic processing differences matter: Plant compounds in legumes appear to interact more strongly with pathways influenced by testosterone, while those in broccoli, cauliflower and cabbage may influence estrogen- and progesterone-related mechanisms.
Practical dietary tailoring gains scientific support: The findings encourage sex-aware guidance—beans, lentils and peas for men; broccoli-family vegetables for women—as a low-cost, accessible strategy alongside broader healthy habits. {alertInfo}
Most people in their early twenties rarely think about heart disease or metabolic syndrome. Yet new research from Australia shows that the vegetables on the plate today may already be shaping tomorrow’s risk profile—and that men and women appear to benefit from different ones.
A cross-sectional analysis of 638 participants from the long-running Raine Study found that higher intakes of legumes and cruciferous vegetables were associated with markedly lower odds of elevated cardiometabolic risk at age 22. The results, published in the August 2026 issue of Nutrition, Metabolism and Cardiovascular Diseases, reveal clear sex differences that could refine everyday dietary advice.
What the Raine Study Measured
Researchers examined young adults (mean age 22.1 years) who completed detailed dietary questionnaires and underwent clinical assessments of blood pressure, waist circumference, cholesterol, triglycerides and blood sugar. High risk was defined as having two or more of these markers elevated. About one in five participants fell into that category—an early signal that cardiometabolic problems can emerge well before middle age.
Vegetable intake was broken down into specific groups: allium, cruciferous, green leafy, legumes, and yellow-orange-red. After adjusting for income, education, smoking, alcohol and overall diet quality, two associations remained statistically robust.
For men, each additional 75-gram daily serving of legumes (peas, beans, lentils and similar foods) was linked to approximately 72 percent lower odds of being in the high-risk group (odds ratio 0.278). For women, each extra daily serving of cruciferous vegetables (broccoli, cauliflower, cabbage, Brussels sprouts) was associated with roughly an 85 percent reduction in odds (odds ratio 0.151).
“It’s not just about piling on greens,” said lead researcher Neal McNamara of Edith Cowan University. “We saw very clear sex-based differences. Beans for blokes and broccoli for women stood out as the real winners.”
Why Sex Differences May Exist
Associate Professor Therese O’Sullivan, also from Edith Cowan University’s Nutrition and Health Innovation Research Institute, noted that men and women may process certain plant compounds differently. Natural compounds in legumes appear to interact more strongly with pathways influenced by testosterone, while those abundant in cruciferous vegetables may affect estrogen and progesterone metabolism more noticeably.
Dr. Lauren Blekkenhorst emphasized the practical takeaway: “What you eat now matters—and choosing to eat these veggies every day could make a real difference on how long—and how well—you live your life.”
The study is observational and cannot prove causation, yet the magnitude of the associations after thorough adjustment makes the findings noteworthy. Risk factors were already present in a sizable minority of otherwise healthy young adults, reinforcing the value of early preventive habits.
Context From Related 2026 Research
These results arrive alongside other recent work highlighting the cardiovascular value of legumes and plant foods. An analysis presented at the 2026 European Atherosclerosis Society Congress found that replacing processed meat with pulses was linked to lower incidence of cardiovascular disease and ischaemic heart disease in UK Biobank participants. Separate observational data published in 2026 also associated higher legume and soy intake with reduced risk of developing high blood pressure.
Together, the evidence points toward a consistent pattern: modest, regular servings of specific plant foods can support healthier metabolic profiles across different life stages.
Practical Ways to Add the Right Vegetables
A single 75-gram serving is roughly half a cup of cooked legumes or a generous portion of broccoli or cauliflower. Simple additions work well:
- Stir lentils or chickpeas into soups, salads or grain bowls.
- Roast broccoli, cauliflower or Brussels sprouts with olive oil and herbs.
- Keep frozen peas or beans on hand for quick side dishes.
- Add cabbage or broccoli to stir-fries and omelettes.
These swaps require little extra cost or cooking skill yet align with the patterns linked to lower risk in the Raine Study cohort.
For broader lifestyle context on how environmental and public-health factors also shape wellbeing, see related reporting on excess deaths during heatwaves and air-quality impacts at Planet Today and coverage of policy developments affecting health decisions at this Planet Today article. Readers interested in scientific and medical updates can explore the Medicine section at planet-today.com.
Limitations and Next Steps
Because the analysis is cross-sectional, it captures associations at one point in time rather than long-term cause-and-effect. Self-reported diet data also carry the usual possibility of measurement error. Future longitudinal work within the Raine Study and similar cohorts will help clarify whether these early dietary patterns translate into lower rates of clinical disease decades later.
Still, the message for young adults is straightforward and encouraging. Choosing legumes more often if you are male, and cruciferous vegetables more often if you are female, appears to be a low-barrier step that tracks with better cardiometabolic markers right now—when the foundation for lifelong heart health is still being laid.
Disclaimer for fact-checkers: This article summarizes findings from a peer-reviewed cross-sectional study published in Nutrition, Metabolism and Cardiovascular Diseases (McNamara et al., 2026; DOI: 10.1016/j.numecd.2026.104709) and related contemporaneous reports. Primary data and full methodology should be consulted in the original publication for verification. Observational results do not establish causality.