Despite what many people think, fat is not all bad. In fact, fats in the diet are essential for good health – if you really did eat a 99% fat free diet, you would not be healthy. The problem with fat is that too much of it is unhealthy. As well as causing you to become overweight, too much fat contributes to obesity, a higher risk of heart disease, high blood pressure, diabetes, gall stones and certain cancers.

When trying to eat a balanced diet, don’t forget that dietary fats/oils have over double the energy of carbohydrates and protein. Dietary fat is also more readily converted to and stored as body fat compared to carbohydrates and protein.

Energy values per gram

Excess carbohydrates may also be converted and stored as body fat. Excess alcohol also lessens the body's ability to burn fat and increases fat storage - particularly in the belly, which is a danger zone for health.

With many of us getting over 40% of total calories from fat - either as fat or oil, or as fat in foods and drinks – it’s not surprising that Americans consume too much fat.

Healthy ranges for fat intake per day are as follows:

The chart below shows the recommended maximum fat intake for different energy levels. Note that at lower calorie levels, the percent of fat calories should decrease to allow for protein calories (which have nutritional priority).