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Get calorie clever and learn to love carbs again - the US Institutes of Health found that a diet heavy on low-GI carbohydrates, such as pulses, brown rice, sweet potato and wholegrain bread, stabilise blood sugars and create a full feeling for longer after a meal. The general rule is that carbs, including veg and fruit, should make up about 40% of your daily calorie count, with 30% of the total calories devoted to protein and the last 30% being made up of a small quantity of high-calorie healthy fats from olive and rapeseed oils, nuts and oily fish. No one wants to whip out a calculator at every meal, but there is a simple, more visual, way to stick to the rule. Divide your plate into two halves at lunch or dinner. One half should be equally split between low-GI carbs and lean protein. The second half of your plate should always be filled up with vegetables or salad. The fat-calorie content will usually be hidden in your meat, or the oil in your dressing.
Are you the sort of person who eats dinner on your lap in front of Heroes and wolfs it down before the first ad break? Then start to take your time over eating. According to Japanese studies, people who eat fast miss their 'feel full' signals. So chew, chew again and concentrate on the act of eating (yes, that means turning off the telly) as this will make you eat more slowly, and so eat less.
This year, over 10 million of us will go on some sort of diet. Six weeks on, half of us will have thrown in the towel and, even if we do manage to shed a few pounds, 12 months later 95% of us will have put all the weight back on. The key to escaping this on-off dieting mentality, says Zest nutritionist Judith Wills, is to boost your body IQ.
'Intelligence is usually applied to our mental prowess; we rarely think of our physical intelligence,' she explains. 'Upping your body IQ means learning how your appetite works naturally and getting savvy about the hidden fat traps that send you off course, such as two-for-one supermarket offers, indulgent restaurant meals and shop-bought salads that come with a creamy dressing.'
And if you change your habits? You'll get weight loss without the work... and no chance of the pounds creeping back on, either. Up your physical intelligence in three key areas - how you eat, shop and dine out - and rejoice in the results!