Home > Diet and nutrition > Healthy Food > Vegetables Updated 27 February 2013 Cos lettuce Cos lettuce is linked to a reduced risk of cancers. It is also a good source of folate and helps to protect against age-related macular degeneration. 0 Vit & Min doses per day » Count calories in food » Is my vegetarian diet balanced? » Ask The Dietitians » Cos lettuce is linked to a reduced risk of cancers. It is also a good source of folate and helps to protect against age-related macular degeneration. The dark outer leaves are the richest in carotenoids. Cos lettuce must be refrigerated and eaten as soon as possible, as the vitamin C content reduces the longer it is kept.These can be eaten freely as they have a low calorie content. Calories 16 Fibre 1,2g Potassium 220mg Folate 55mcg Per 100g NEXT ON HEALTH24X What will happen to Noakes if he is (really) found guilty? 2016-12-02 14:13 More: Healthy FoodVegetables advertisement Read Health24’s Comments Policy Comment on this story 0 comments Comments have been closed for this article. Logout Comment 0 characters remaining Share on Facebook Loading comments... From our sponsors Cipla today announced the launch of its innovative inhaler called Synchrobreathe. Live healthier How loud is too loud? » Heal your hearing Pain relievers linked to hearing loss in women FDA approves balloon device to clear Eustachian tube SEE: Interesting facts about hearing loss Our ears perform quite a complex job – not only are they responsible for helping us hear, they also assist with balance. Get back into your healthy habits » 7 beach sports to keep you active 7 reasons to start running Here's how to get yourself back into exercise after a break 5 ways to kickstart your fitness routine in 2017 With the festive season at an end, getting back into your fitness routine should be a breeze with these five steps.