Explain why it is necessary for everyone to eat only a few oils or discretionary calories?

Explanation:

Oils are not a food group, but they do provide essential nutrients. High intake of oil that contains trans fats is associated with all sorts of chronic diseases, including heart disease, obesity and diabetes.

Oil is extremely dense in calorie but contains little in the way of micro nutrition. Calories consumed more than the body needs will make the body changes the extra calories to fat. Too much fat can lead to being overweight and other health problems.

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