a substance that is added in small amounts to something, especially food, in order to improve it, give it colour, make it last longer, etc. food additives The classification of additives by ‘E’ number is made under an EU directive. additive-free orange juice chemical additives in petrol CollocationsDiet and exerciseWeight put on/gain/lose weight/a few kilos/a few pounds watch/control/struggle with your weight be/become seriously overweight/underweight be/become clinically/morbidly obese achieve/facilitate/promote/stimulate weight loss slim down to 70 kilos/(British English) 11 stone/(especially North American English) 160 pounds combat/prevent/tackle/treat obesity develop/have/suffer from/struggle with/recover from anorexia/bulimia/an eating disorder be on/go on/follow a crash/strict diet have/suffer from a negative/poor body image have/develop a positive/healthy body imageHealthy eating eat a balanced diet/healthily/sensibly get/provide/receive adequate/proper nutrition contain/get/provide essential nutrients/vitamins/minerals be high/low in calories/fat/fibre/(especially US English) fiber/protein/vitamin D/Omega-3 fatty acids contain (no)/use/be full of/be free from additives/chemical preservatives/artificial sweeteners avoid/cut down on/cut out alcohol/caffeine/fatty foods stop/give up/ (especially North American English) quit smokingExercise (British English) take regular exercise do moderate/strenuous/vigorous exercise play football/hockey/tennis go cycling/jogging/running go to/visit/ (especially North American English) hit/work out at the gym strengthen/tone/train your stomach muscles contract/relax/stretch/use/work your lower-body muscles build (up)/gain muscle improve/increase your stamina/energy levels/physical fitness burn/consume/expend caloriesStaying healthy be/get/keep/stay healthy/in shape/(especially British English) fit lower your cholesterol/blood pressure boost/stimulate/strengthen your immune system prevent/reduce the risk of heart disease/high blood pressure/diabetes/osteoporosis reduce/relieve/manage/combat stress enhance/promote relaxation/physical and mental well-being Word Origin late 17th cent. (as an adjective): from late Latin additivus, from Latin addit-
‘added’, from the verb addere , from ad- ‘to’ + the base of dare ‘put’. The noun dates from the 1940s.