A study carried out in Finland and published in the European Journal of Nutrition revealed a finding with great potential for health: reduce the red meat and processed and partially replace it with legumes It can generate notable benefits in the body.
According to researchers, this simple dietary change favors weight loss and improve the cardiovascular healtheven without the need to reduce caloric intake. The discovery opens the door to alternatives practical and accessible for those who want to improve their well-being without completely transforming their daily habits.
The main analysis of the study suggests that replacing red and processed meats with legumes can promote weight loss, as well as the reduction of LDL cholesterol, commonly known as “bad cholesterol.”
After six weeks of dietary intervention, the men who made this dietary change not only experienced greater weight loss compared to the group that maintained their usual meat intake, but also showed improvements in other indicators relevant to heart health.
What is notable about these results is that participants were not calorie restricted, suggesting that small alterations in diet quality may be more effective than calorie counting in achieving changes in weight and lipid profile.
Research shows that it is possible promote weight loss and improve cardiovascular parameters simply by increasing the consumption of legumes rich in fiber and partially reducing meat of animal origin in usual meals.
Researchers insist that the flavor and enjoyment of the dishes are not compromised and that it is enough to make partial substitutions—such as in tacos or hamburgers—to perceive the benefits.
Emilia Huvinenobesity researcher and board member of the Finnish Association of Obesity Researchers, says: “Adding lentils to the diet helps to lose weight, balance blood sugar, achieve cholesterol goals and even reduce blood pressure.”
The study was developed as a randomized controlled trial with a duration of six weeks and the participation of 102 healthy men, with an average age of 38 years. The men were divided into two groups.
He first group (meat group) consumed about 760 grams of red and processed meat per week, an amount that is equivalent to the common male intake in Finland. This meat provided approximately 25% of the total protein in their diet.
On the other hand, the second group (legume group) reduced their meat intake to 200 grams per week, adjusting to what is recommended in healthier diets. To equalize the protein intake, legume-based foods were included that equaled the protein of about 560 grams of meat. Thus, in the diet of this group, legumes represented 20% of the total protein, and meat, only 5%.
Both groups maintained their usual diet outside of the foods studied. The researchers evaluated feeding records and blood and urine indicators at the beginning and end of the trial.
At the end of six weeks, The legume group achieved a significantly greater average weight loss than the group that continued with meat (around 900 grams versus 220 grams), even though the former consumed, on average, 240 more calories per day.
The study also showed that those who incorporated legumes into their diet achieved a further reduction in body mass index (BMI) and significant improvements in lipid profilewith more marked decreases in total cholesterol and LDL or “bad cholesterol.” The authors attribute these results to high in fiber and healthy fats present in these foods.
Likewise, the research further revealed that, although the levels of vitamin B12 decreased in the group that consumed more legumes, they remained within normal parameters. In contrast, the iron intake increased, with stable blood values despite the lower absorption of plant iron, while the iodine did not show relevant short-term changes among participants.
The researchers recognize several limitations in their work. The duration of the trial was short, just six weeks, and the sample included exclusively men. Self-reporting in food records can be susceptible to error, and participants in the legume group reported engaging in more physical exercise, which could have influenced the magnitude of the results.
Furthermore, although the legume group lost about 0.7 kg more than the meat group, no relevant differences were detected in body composition (muscle mass, fat), suggesting that part of the decrease could be due to transient changes such as hydration.
To confirm these findings, longer and more heterogeneous trials will be necessary, covering different population profiles.
The study proposes that It is not necessary to radically transform your diet to obtain benefits. It is enough to include legumes several times a week, partially or totally replacing meat in regular dishes.
Some practical recommendations include using beans or lentils in tacos, preparing burgers that mix lean meat with pureed legumes, or adding chickpeas to baked vegetable dinners. Even enriching pasta with beans or preparing cereal bowls with chickpeas, vegetables and fresh cheese are simple options that can be kept in the daily routine.
Storing canned legumes or cooking them in large quantities to have them during the week are strategies that facilitate their presence in the diet. The authors highlight that this type of food combines well with intense flavors and various spices, which allows innovation in the kitchen without sacrificing enjoyment of the food.
Expert opinion summarizes that replacing part of the consumption of red and processed meat with legumes represents an easy, accessible and economical measure to promote weight loss and improve cardiovascular health.
In addition, this strategy allows you to maintain a nutritionally balanced diet, enhancing the intake of fiber, iron and vegetable proteins without the need for strict calorie restrictions or sacrifices in the quality and enjoyment of meals.
