In general, chewing food increases the number of calories the body burns during digestion. For example, the way a person chews their food has been shown to affect weight loss to some degree. This points to the complex nature of calories and nutrition and is the reason why there are many conflicting viewpoints on the best methodology for weight loss. Some studies have shown that the calories reported on nutrition labels and the calories actually ingested and stored can vary considerably. The main sources of calories in a typical person's diet are carbohydrates, protein and fat.
However, too little calorie intake leads to poor functioning of the body.Ĭalories: Different types and their effects The body does not need many calories to survive. For example, a physically active 25-year-old man who is 6 feet tall requires a much higher caloric intake than a sedentary 70-year-old woman who is 5 feet tall. But how many calories does the body actually need to be healthy? This largely depends on the physical activity a person performs each day and is different for everyone regardless.įactors a person needs to stay healthy include age, weight, height, gender, level of physical activity, and overall health. Many people want to lose weight and often the easiest way is to eat fewer calories per day.
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