Keto
The ketogenic diet, aka Keto, is a very popular weight loss diet that aims to remove all sugars from the diet including naturally occurring complex carbohydrates. This diet is very heavy in meat and fat.
People on a Keto diet do not eat
sugary foods: soda, fruit juice, smoothies, cake, ice cream, candy, etc.
grains or starches: wheat-based products, rice, pasta, cereal, etc.
fruit: all fruit, except small portions of berries like strawberries
beans or legumes: peas, kidney beans, lentils, chickpeas, etc.
root vegetables and tubers: potatoes, sweet potatoes, carrots, parsnips, etc.
low fat or diet products: low fat mayonnaise, salad dressings, and condiments
some condiments or sauces: barbecue sauce, honey mustard, teriyaki sauce, ketchup, etc.
unhealthy fats: processed vegetable oils, mayonnaise, etc.
alcohol: beer, wine, liquor, mixed drinks
sugar-free diet foods: sugar-free candies, syrups, puddings, sweeteners, desserts, etc.
Diners looking for Keto meals appreciate the option to remove sauces and dressings from their dishes. A common request is for grilled meats and plain salads with the option to add oils, or fat and meat laden meals such as bacon and eggs. Consider which meals a small tweak on request could be made Keto and pop it on your menu.
Additional resources
The Ketogenic Diet: A Detailed Beginner's Guide to Keto
A Keto Diet for Beginners: The #1 Ketogenic Guide - Diet Doctor