Being on fruit and veggie-heavy diet won’t make you eat less
London: Dieters are often advised to eat fruit and vegetables at meal times to help them feel full for longer and avoid gobbling down calorie-laden food later in the day.
But a new study carried out by Purdue University in West Lafayette, Indiana has claimed that it is not an effective long-term diet solution, the Daily Mail reported.
Researchers found that eating fresh and dried fruit before a meal help people feel fuller and eat slightly less during the main course, but being on a fruit- and vegetable-heavy diet for months made no long-term difference in the volunteers assessments of their own hunger and fullness.
In fact, drinking fruit juice before a meal actually boosted hunger and weight gain for some participants.
Volunteers who started with fruit juice ended up consuming up to 100 additional calories over a meal, according to the findings published in the International Journal of Obesity.
The findings contradict the theory that people should ‘fill up’ on lots of fruit and veg to help them feel full for longer and prevent overeating on sugary and fat filled snacks.
Richard Mattes from Purdue University in West Lafayette, Indiana, and his colleagues found that when they fed volunteers a regular lunch of all-you-can-eat macaroni and cheese, they ate an average of 785 or 821 calories of it, depending on the day.
When the same participants started a meal with fresh and dried fruit, then went on to the main course, they ended up eating 678 calories of lunch, the fruit course included.
But when they started with fruit juice instead, the volunteers took in a total of 891 calories.
People ate about 400 more calories, on average, during the test day when they started lunch with juice, compared to when they started with solid fruit, the study revealed.
That means simply adding fruits and veggies to meet nutritional guidelines may not be enough to help people stay full and lose weight - and may actually make it harder for them to shed extra pounds, the researchers said.
So Mattes and his colleagues advised ‘careful implementation of recommendations’ through counselling or other nutrition programs to make sure people taking steps to improve their diet do not end up accidentally putting on more weight.
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