AHA: Diets Should Stress Healthy Foods, Not Diversity

Ученые Разнообразная диета может стать причиной проблем со здоровьем

The nutritional advice is clear: eat a wide range of foods to ensure that you're getting a balanced diet.

Instead of telling people to eat a variety of foods, the statement authors conclude that dietary recommendations should emphasize adequate consumption of plant foods, such as fruit, vegetables, beans and whole grains, low-fat dairy products, non-tropical vegetable oils, nuts, poultry and fish, and limit consumption of red meat, candies and sugary drinks.

Marcia C.de Oliveira Otto, Ph.D., assistant professor in the Department of Epidemiology, Human Genetics and Environmental Sciences at UTHealth School of Public Health, explained why variety can also be your waistline's enemy rather than friend in the paper published today in the AHA's scientific journal Circulation. Now, experts are warning that it may actually lead to just eating more calories - and to obesity. "This raised some red flags and had implications on obesity - we saw a greater prevalence of obesity amongst people with a greater dietary diversity". It concludes that the majority of evidence does not support the notion that dietary diversity is an effective way to promote healthy eating habits and a healthy body weight. "It is not clearly and consistently defined across the board, and there is no useful measure of it".

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"The phenomenon of sensory satiation is very important - when something new is presented to us, we tend to eat more and more", Rao said.

The AHA also says diet diversity can also lead to poor eating patterns and weight gain in adults.

There is actually some evidence that speaks to the contrary, suggesting that a wider variety of food options in a meal may delay the feeling of being full or satisfied, and may increase the amount of food that is eaten.

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The statement authors conducted a thorough scientific literature review of articles published between January 2000 and December 2017.

While one person may expand their diet to include a variety of fruits and vegetables, pulses and whole grains, another may take to consuming more energy dense foods such as white bread and pastries, as well as foods loaded with saturated fats such as cheese.

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