Mixed fat diet more nutritious

People eating a mixed diet of lower-fat and high-fat foods consume more vitamins and minerals than those who stick to only lower-fat foods or high-fat foods, according to a study by researchers in the US.

Researchers from the University of Nevada compared dietary intakes of more than 14,000 American children and adults and divided them into three groups: low-fat eaters (those who ate lower-fat versions of selected foods), high-fat eaters (those who ate 'regular' versions of selected foods) and 'mixed' eaters (those who ate both lower-fat and regular versions of selected foods).

The study findings, which are published in the May issue of the Journal of the American Dietetic Association, showed that those who ate a mixed diet had higher intakes of calcium, phosphorus, magnesium, iron, zinc, fibre, most B vitamins, vitamins A and C and folate.

"This study is a perfect example of how all foods can fit into a healthful eating plan,"​ said registered dietitian and ADA spokesperson Connie Diekman."People don't have to feel guilty about eating their favourite foods, so long as they are eating a balance of foods as well as getting regular physical activity."​

"Incorporating low-fat foods into an eating plan has been shown to reduce fat and saturated fat intakes while still maintaining adequate nutrient intakes,"​ continued Diekman.

The researchers said they also found that female lower-fat and mixed diet eaters, as well as children who consumed lower-fat foods, met the federal government's dietary guidelines of 30 per cent energy from fat. Those in the high-fat food group did not meet dietary guidelines for fat and saturated fat.

Adults consuming lower-fat and high-fat foods were revealed to be significantly more likely to be better educated, have higher incomes, be white and be older than low- or high-fat-only eaters. Similarly, children consuming a mixed diet tended to be younger, white and come from families with higher incomes.