Prediabetes diet and gallstones

I wouldn't reconnect a low carbohydrate : high fat diet when you have gall stones. 

I would reccomend a balanced of health cabohydrates teamed with lean protein and a small amount of health fat.

For example fresh fruit with natural yogurt full fat. Like yeo valley. 

A grilled chicken salad with a few small new baby potatoes 

dinner of a stir fry with salmon and courgettes noodles 

snack on vegetables and low sugar fruit like berries or stone fruit if you are hungry and make sureness you drink enough water. 

Hope you find this helpful xx