1 food sb/sth usually eats
ADJ. balanced, good, healthy, sensible | adequate People can fight infection more easily if they have an adequate diet. | bad, poor, unhealthy | staple a staple diet of cornmeal and vegetables | vegan, vegetarian
VERB + DIET eat, have It is important to eat a balanced diet. | live on, survive on They had to survive on a diet of insects and berries. | feed sb on
DIET + VERB consist of sth The animal's diet consists mainly of grasses.
PREP. in a/the ~ the amount of fat in your diet | on a ~ These animals live on a mainly vegetarian diet. | ~ of They were fed on a diet of rice and vegetables.
PHRASES a diet high/rich in sth a diet rich in vitamins and minerals
2 when you want to lose weight/are ill
ADJ. strict | slimming, weight-loss, weight-reducing | crash, starvation Crash diets are not the best way to lose weight. | calorie-controlled, low-calorie | restricted, special | fibre-rich, gluten-free, high/low-fibre, high/low-protein, low-fat, salt-free, etc.
VERB + DIET follow, have If you follow this diet, you're bound to lose weight. | go on, start | stick to I have to stick to a low-fat diet. | be on I'd love some chips, but I'm on a diet.
DIET + NOUN drink, food | plan Lose pounds with our new diet plan!
PREP. on a ~ They're on a special high-protein diet.