DAIRY
Dairy is an excellent source of calcium and perfect to create and add to meals. Try mixing Quark into cooked pasta or making a delicious mushroom omelette for a healthy filling lunch.
Eggs
Fat free natural fromage frais
Fat free natural yogurt
Fat free Greek style yogurt
Fat free natural Greek yogurt
Fat free natural Skyr
Fat free natural cottage cheese
Plain Quark
Dairy free soya yogurt with added calcium (plain and unsweetened)
DRINKS
Free also includes drinks and it is really important to stay hydrated. Just remember to stick to low calorie drinks and if you add sugar to your hot drinks you must Syn this.
Coffee, black, all varieties
Cordial/squash, no added sugar, all varieties
Low calorie/sugar free carbonated drinks, all varieties
Slimline Mixers
Mineral water, still/sparkling, plain
Tap water
Tea, black/green, all varieties
Tea, herbal infusions, all varieties
Source: https://fatgirlskinny.net/syn-free-foods-slimming-world-essentials/