Madrid: It is said that maintaining healthy eating habits is the key to preventing obesity. The study showed that certain healthy habits, like eating more than four scheduled meals a day or not eating too fast, are associated with lower body fat levels independently of exercise habits during free time.

Data on fat levels were obtained by taking the sum of six skin folds and the waist circumference of 1,978 adolescents (1,017 girls) between the ages of 13 and 18 years from five Spanish cities (Granada, Madrid, Murcia, Santander and Zaragoza). The role that physical activity during free time plays on fat levels was also assessed.

"To clarify the effects of dietary habits on obesity it is vital to study them along with other lifestyle habits such as physical activity," Sonia Gomez Martinez, lead author of the study and researcher at the ICTAN's department of Metabolism and Nutrition, explained to SINC.

The young men were taller, weighed more, had a larger waist circumference, and ate faster during meals. However, according to the study their accumulated fat rate was lower.

Furthermore, the researchers observed that eating breakfast on a daily basis is especially beneficial in the case of young men who do not do any exercise since those who skipped this meal showed higher body fat values.

Gomez Martinez stated that "the results obtained have shown that one in every four girls and one in every three boys in Spain are overweight or obese." However, only 18.5 per cent of the boys did not do some form of sport as opposed to 48.5 per cent of the girls.

Sexual maturity and the increase in size and weight determine the nutritional needs of adolescents, who grow by approximately 20 per cent of their adult height and 50 per cent of their muscle and bone mass during puberty.

Such processes require a high amount of energy and nutrients and so the diet should be designed to meet such requirements. During adolescence, the three most important minerals are calcium, iron and zinc.

Whereas calcium is essential for bone growth, iron is involved in haematologic tissue (red blood cells) and muscle tissue growth, and zinc plays a part in bone and muscle growth. It is also linked to hair and nail growth.


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