Kingsway

Meat: Here you can eat lamb, beef, pork, etc.

Eggs: They are very rich in fat content.
Cheese: Make sure that they do not contain carbs
Veggies: They contain some amount of carbs but make sure that what you eat is not too rich in carbs, vegetables like cabbage and lettuce are okay.
Nuts: They are a good source of low carbs especially walnut and almonds.

Never eat starchy carbs like bread, pasta, cereals, potatoes, beans, legumes or some fruits.