If you’ve read the last two parts of our article, you’d know there are plenty of foods you can eat on a keto diet. However, there are also some foods you should avoid. Here are 15 things you can’t eat on a keto diet.

1. Sugary Foods

Sugary foods such as candy, ice cream, cookies, cakes, and other desserts are high in carbohydrates and sugar. These foods will quickly take you out of ketosis and prevent you from reaching your weight loss goals.

2. Grains

Grains like wheat, rice, oats, and barley are high in carbohydrates and can spike your blood sugar levels. Avoid bread, pasta, rice, and other grain-based foods.

3. Fruit 

Most fruits are high in natural sugars, which can quickly take you out of ketosis. Stick to low-carb fruits like berries and avocados.

4. Starchy Vegetables

Starchy vegetables like potatoes, corn, and peas are high in carbohydrates and can impact your blood sugar levels. Opt for low-carb vegetables like broccoli, cauliflower, and zucchini.

5. Legumes

Legumes, such as beans, lentils, chickpeas, and peas, are high in carbs and should be avoided on a keto diet. Legumes contain complex carbohydrates, which can be difficult for your body to break down and convert into energy. Eating legumes may also cause a spike in your blood sugar levels, which can be dangerous for people with diabetes. 

6. Processed Foods 

Processed foods, such as store-bought pastries, chips, and cookies, should be avoided on a keto diet. These types of foods are usually high in unhealthy fats, refined carbs, and preservatives. Eating processed foods can also lead to weight gain and an increased risk of chronic diseases. 

7. Alcohol 

Alcohol should be avoided on a keto diet as it can be high in calories and carbs. Alcohol can also impair your judgment, leading to poor food choices. Additionally, drinking alcohol can reduce the effectiveness of the keto diet and slow down your weight-loss progress. 

8. Milk

Milk is high in carbohydrates, so it should be avoided on a keto diet. Milk can also be difficult to digest, especially for people with lactose intolerance. If you want to get your calcium and other nutrients, opt for low-carb dairy alternatives like almond milk or coconut milk instead.

9. Sweetened Beverages

Sweetened beverages like soda, energy drinks, and sweetened tea and coffee can quickly take you out of ketosis. Stick to water, unsweetened tea, and black coffee.

10. High-Carb Sauces and Condiments

Sauces and condiments like ketchup, barbecue sauce, and honey mustard are high in sugar and carbohydrates. Opt for low-carb options like mustard, hot sauce, and olive oil.

11. Fried Foods

Fried foods like French fries, chicken wings, and mozzarella sticks are usually high in carbohydrates and unhealthy fats. Stick to grilled or baked meats and vegetables on a keto diet.

12. Low-Fat Dairy Products

Low-fat dairy products like skim milk and low-fat yogurt are often high in carbohydrates and sugar. Opt for full-fat dairy products like cheese and heavy cream instead.

13. Honey, Maple Syrup, and Agave Nectar

Honey, maple syrup, and agave nectar are natural sweeteners but are high in carbohydrates and sugar. Avoid these sweeteners on a keto diet.

14. High-Carb Snacks

High-carb snacks like popcorn, pretzels, and crackers are usually high in carbohydrates and unhealthy fats. Opt for low-carb snacks like nuts, seeds, and cheese instead.

15. High-Carb Fruits

High-carb fruits like bananas, grapes, and mangoes are high in natural sugars and carbohydrates. Stick to low-carb fruits like berries and avocados on a keto diet.


Following a keto diet can be challenging, but with a little planning and preparation, it can be a healthy and effective way to lose weight and improve your health. By avoiding these 15 foods, you can stay in ketosis and reach your weight loss goals. Remember to eat plenty of healthy fats, low-carb vegetables, and protein to keep your body fueled and satisfied.

Smart Cooking Recipes is an excellent resource for exploring new recipes and tips for a healthier meal. With a wide range of recipes for all skill levels, dietary needs, and cuisines, you will find something to please your palate. Smart Cooking Recipes has you covered whether you are looking for easy keto diet meals. With a focus on healthy and tasty meals, you can trust us with the recipes you find will be both delicious and nutritious.