![]() ![]() ![]() They found 201 metabolites (amino acids) in blood samples collected from a subset of 1,154 participants, with 24 metabolites associated with either poor diet and fitness or with favorable diet and fitness. Researchers examined the relationship between diet quality, fitness, and metabolites, which are substances produced during digestion and released into the blood during exercise. “The relationship was similar in women and men, and more pronounced in those under 54 years of age compared to older adults.” “In middle-aged adults, healthy dietary patterns were strongly and favorably associated with fitness even after taking habitual activity levels into account, Mi said. Compared with the average score, an increase of 13 points on the AHEI and nearly 5 on the MDS was associated with a 5% and 4% percent greater peak VO2, respectively. The average AHEI was about 67, while the average MDS was about 12. Researchers examined the link between diet and fitness after considering other factors such as age, sex, total daily energy intake, body mass index, smoking status, cholesterol levels, blood pressure, diabetes and routine physical activity level. Higher scores indicated a better-quality diet including fruits, vegetables, nuts, whole grains, legumes, fish and healthy fats, and limited red meat and alcohol. The researchers also quantified the fasting blood concentrations of 201 metabolites. Dietary quality was assessed by the Alternative Healthy Eating Index (AHEI 0 to 110) and Mediterranean-style Diet Score (MDS 0 to 25), which are both associated with good heart health. They also completed the Harvard semi-quantitative food frequency questionnaire, which quantified intake during the last year of 126 dietary items ranging from never or less than once per month to ≥6 servings/day. ![]() Participants did a maximum effort cardiopulmonary exercise test on a cycle ergometer to measure peak VO2 (the maximum rate of oxygen someone uses during exercise). The average age was 54 and 54% of the participants were women. Researchers studied 2,380 people in the Framingham Heart Study. The study looked at the link between a healthy Mediterranean diet and physical fitness in community-dwelling adults. They also said even with people who exercise the same amount, there are still differences in fitness, suggesting that additional factors like diet contribute. The researchers said these are a “powerful predictors of longevity and health.” It also integrates the health of multiple organ systems, such as the heart, lungs, blood vessels and muscles. The researchers pointed out cardiorespiratory fitness reflects the body’s ability to provide and use oxygen for exercise. “The improvement in fitness we observed in participants with better diets was similar to the effect of taking 4,000 more steps each day.” Michael Mi, a study author and cardiologist at the Beth Israel Deaconess Medical Center in Boston, in a statement. “This study provides some of the strongest and most rigorous data thus far to support the connection that better diets may lead to higher fitness,” said Dr. That’s according to a new study published this week in the European Journal of Preventive Cardiology, a journal of the European Society of Cardiology (ESC). They also note it’s still important to exercise regularly even if you are on a healthy diet plan.Ī healthy diet can be the physical equivalent of taking 4,000 extra steps per day for middle-aged adults.Experts say you can adjust to this type of eating plan by eating more fruits and vegetables, consuming less red meat, and preparing your own meals from scratch.Researchers say adopting a Mediterranean-style diet produces the same benefits as walking 4,000 extra steps per day. ![]()
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