What Can't You Eat on Keto - Prohibited Foods Explained (2024)

The ketogenic diet is on hearing for its ability to facilitate weight loss and enhance overall well-being. The main objective of this diet is to transition the body's metabolism into a state that is called ketosis, where fat becomes the primary source of energy instead of carbohydrates.

In case you’re a newcomer in keto, you should be mindful of the foods that are strictly forbidden on this meal plan in order to successfully achieve and sustain ketosis. This article reveals ten foods that are not recommended on the keto diet and discusses the reasons why they should be avoided.

Understanding the Keto Diet

Before we explore restricted foods, let's briefly grasp the principles of the keto diet. The main objective of this diet, distinguished by high fat, modest protein as well as low carbohydrate intake, is to significantly reduce carb consumption. By limiting carb intake to approximately 20-50 grams per day, the body depletes its glycogen stores and shifts to breaking down fats into ketones, an alternative source of fuel. Consequently, the body enters a state of ketosis, which forms the basis of the ketogenic diet's effectiveness. This can be done by achieving a proper meal plan containing the right goods. At Ideal Nutrition, you can find flavorful keto meals boasting a diverse menu and ensuring a satisfying culinary experience while staying true to your ketogenic goals.

And here are the common foods that should be avoided.

10 Foods You Can’t Eat on the Keto Diet & Their Substitutes

1. Grains and Starches

What Can't You Eat on Keto - Prohibited Foods Explained (1)

One of the initial food categories to steer clear of on the keto diet is grains and starchy foods. Examples include wheat, rice, corn, and oats, which are rich in carbohydrates. These goods can have a notable impact on blood sugar levels and impede the body's ability to enter ketosis. By eliminating these high-carb staples from your diet, you enable your body to efficiently burn fat for energy instead of relying on glucose derived from carbohydrates.

Substitutes for Grains and Starches

  • Cauliflower rice. Substitute traditional rice with cauliflower rice, a nutritious alternative that is low in carbs. It serves as a versatile base for stir-fries, curries, and even keto-friendly sushi rolls.
  • Zucchini noodles (Zoodles). Replace traditional pasta with zucchini noodles to savor your beloved pasta dishes while avoiding excessive carbs. Zoodles can be lightly cooked or enjoyed raw in salads.

2. Sugary Foods and Sweets

What Can't You Eat on Keto - Prohibited Foods Explained (2)

Sweet treats and sugary foods are a definite "no" when following a keto diet. Consuming candies, pastries, and sugary drinks leads to a quick rise in insulin levels. Elevated insulin levels hinder fat burning and encourage fat storage, making it hard to achieve and maintain ketosis. Avoiding these sugary temptations helps stabilize blood sugar levels and enhances your body's ability to burn fat.

Substitutes for Sugary Foods and Sweets

  • Stevia or erythritol. Incorporate natural sweeteners such as stevia or erythritol into your keto baking and cooking. These sweeteners have minimal effect on blood sugar levels and can satisfy your cravings for sweetness without disrupting your ketosis.
  • Dark chocolate. Pick dark chocolate with at least of 70% cocoa content and low sugar. It can be a delightful indulgence in moderation and provides numerous health advantages.

3. High-Carb Fruits

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While fruits provide essential vitamins and antioxidants, some fruits have higher carbohydrate content. Bananas, grapes, and mangoes, for example, contain significant amounts of sugar and are not recommended for those following a keto diet.

Substitutes for High-Carb Fruits

  • Berries. Berries like strawberries, blueberries, raspberries, and blackberries are rich in fiber, antioxidants, and have a low carb content. Indulge in them moderately for a delightful and nutrient-packed treat.
  • Avocado. Avocado is a fruit that is compatible with the keto diet, as it contains beneficial fats and is low in carbs. It can be a flexible ingredient in salads, smoothies, and desserts.

4. Starchy Vegetables

What Can't You Eat on Keto - Prohibited Foods Explained (4)

Vegetables are typically regarded as nutritious, although certain types contain higher levels of starch and carbohydrates. On the keto diet, you should restrict the consumption of starchy vegetables such as potatoes, yams, and corn.

Substitutes for Starchy Vegetables

  • Leafy greens. Spinach, kale, arugula, and other leafy greens serve as top-notch substitutes for starchy vegetables. These nutrient-rich options are low in carbohydrates and offer a myriad of essential vitamins and minerals.
  • Broccoli and cauliflower. These vegetables are rich in nutrients and can be incorporated into a range of keto-friendly recipes like casseroles and soups, making them a great addition to your low-carb diet.

5. Legumes and Beans

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Beans and legumes receive accolades for their protein and fiber content, yet they also contain a considerable amount of carbohydrates. Lentils, chickpeas, and black beans, among others, can potentially interrupt ketosis and cause fluctuations in blood sugar levels. For a strict keto diet, completely abstain from consuming legumes and beans.

Substitutes for Legumes and Beans

  • Nuts and seeds. Almonds, walnuts, and chia seeds are excellent sources of healthy fats and protein. They can be enjoyed as snacks or used as toppings in ketogenic recipes.
  • Coconut flour. To reduce the carbohydrate content of your beloved recipes, consider using coconut flour as a substitute for conventional flours when baking. This change can help keep your creations healthier and more suitable for your dietary needs.

6. Processed Foods with Hidden Carbs

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Processed foods are well-known for their concealed sugars and carbs, which can impede your keto progress. Foods like chips, pre-packaged snacks, and some convenience meals may appear low in carbs, but they frequently harbor covert sugar and starch sources. Be vigilant in reading food labels and opt for whole, unprocessed foods to stay on course with your keto adventure.

Substitutes for Processed Foods

  • Homemade snacks. Create your own low-carb snacks, such as kale chips, cheese crisps, or nut blends. By doing so, you can have full control over the ingredients and ensure they align with your daily carb limit.

7. Alcohol and co*cktails

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Alcohol consumption presents a distinct challenge when following the keto diet. While certain alcoholic beverages contain minimal carbohydrates, the body prioritizes metabolizing alcohol over fats, which can delay or halt ketosis. co*cktails that are mixed with sugary syrups or sodas can result in a significant intake of carbs. Exercise moderation if you decide to consume alcohol while on a keto diet, and pick low-carb options.

Substitutes for Alcohol and co*cktails

  • Spirits with low-carb mixers. Select spirits such as vodka, gin, or tequila and combine them with sugar-free alternatives like soda water, sparkling water, or diet tonic.

8. High-Carb Sauces and Condiments

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Many seasonings contain sugars and starches that can quickly add up and disrupt ketosis. Examples of condiments to avoid include ketchup, BBQ sauce, and sweet dressings.

Substitutes for High-Carb Sauces and Condiments

  • Olive oil. Use olive oil as a foundation for dressings and sauces. It serves as a fantastic provider of nutritious fats while imparting a delightful taste to your keto dishes.
  • Mustard. Mustard is a condiment with low carbohydrate content, which adds a tangy flavor to sandwiches and salads in a delightful way.

9. Trans Fats and Hydrogenated Oils

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Partially hydrogenated oils, which commonly contain trans fats, bring negative effects on heart health and can contribute to inflammation. While there is no direct link between trans fats and ketosis, it is better to avoid them in order to promote overall health while following a keto diet. To support your body's optimal functioning, steer clear of margarine and processed foods that contain hydrogenated oils.

Substitutes for Trans Fats and Oils

  • Healthy fats. Choose natural sources of healthy fats like avocados, olive oil, coconut oil, and nuts. These fats promote ketosis and enhance overall wellness.

10. Low-Fat and Diet Products

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While low-fat and diet items are advertised as nutritious choices, they frequently include extra sugars and artificial sweeteners to alter the absence of fat. The consumption of these products might impede your progress on the keto diet by raising your carbohydrate intake.

Substitutes for Low-Fat and Diet Products

  • Full-fat dairy. Opt for full-fat versions of dairy products such as yogurt, cheese, and heavy cream. These choices are lower in carbohydrates and provide greater satisfaction compared to their low-fat alternatives.
  • Grass-fed meat. Savor the goodness of grass-fed meats, rich in beneficial omega-3 fatty acids, and free from any added hormones or antibiotics.

Conclusion

Maintaining a successful keto diet requires a solid understanding of the foods to avoid. By staying away from grains, sugary foods, high-carb fruits, and starchy vegetables, you set yourself up for a smoother transition into ketosis. Additionally, steer clear of processed foods, alcohol, and condiments that may contain hidden carbs. This wise approach helps you stay on track with your keto goals while promoting overall health. Embrace a balanced approach to the keto diet, and soon you'll experience the benefits of increased energy, weight loss, and overall health state.

What Can't You Eat on Keto - Prohibited Foods Explained (2024)

FAQs

What Can't You Eat on Keto - Prohibited Foods Explained? ›

- Grains: Rice, wheat, oats, barley, rye, quinoa, buckwheat, etc. - Starchy Vegetables: Potatoes, peas, sweet potatoes, yams, corn, cassava, artichoke, etc. - Refined Carbs: Bread, pasta, pastries, tortilla, sandwich, etc. Due to the high-carb content of these food items, they are not keto-friendly.

What foods are not allowed on keto diet? ›

10 Foods You Can't Eat on the Keto Diet & Their Substitutes
  • Grains and Starches. ...
  • Sugary Foods and Sweets. ...
  • High-Carb Fruits. ...
  • Starchy Vegetables. ...
  • Legumes and Beans. ...
  • Processed Foods with Hidden Carbs. ...
  • Alcohol and co*cktails. ...
  • High-Carb Sauces and Condiments.

What is excluded from a ketogenic diet? ›

The keto diet excludes carb-rich foods like grains, beans, fruits and starchy vegetables. 20 percent of calories from protein, such as meat, eggs and cheese. 75 percent of calories from fat, such as oils, unprocessed nuts, butter and avocado.

What restrictions are given about when to eat on a keto diet? ›

Keto Rules
  • Cut out the carbs. Keto foods on a plate. ...
  • Eat high quality protein. Keto foods like salmon and fish. ...
  • Go heavy on the fats. Nuts and healthy keto fats. ...
  • Hydrate, hydrate, hydrate. ...
  • Stick to simple beverages. ...
  • Avoid starchy vegetables. ...
  • Avoid starchy fruits. ...
  • Keep your food consumption to an 8 hour window.
Sep 12, 2022

What foods kick you out of ketosis? ›

Foods to Limit on the Keto Diet
  • Grains.
  • Starchy vegetables and high-sugar fruits.
  • Sweetened yogurt.
  • Juices.
  • Honey, syrup or sugar in any form.
  • Chips and crackers.
  • Baked goods including gluten-free baked goods.
Aug 15, 2023

What foods can I eat unlimited on keto? ›

What you can eat on a keto diet: Get ready for a whole lot of fat, some protein and just about zero carbs throughout your day. Keto-approved fridges and pantries include meat, seafood, dairy, eggs, nuts, fats and oils and some veggies that grow above ground.

What veggies are not keto? ›

Vegetables to avoid in a keto diet
VegetableCarbs per 100 g
sweetcorn5.31 g
potatoes20.45 g
sweet potatoes16.82 g
beets9.56 g
3 more rows
Apr 28, 2021

What do you exclude in keto diet? ›

You need to limit your consumption of high-carb foods like: - Grains: Rice, wheat, oats, barley, rye, quinoa, buckwheat, etc. - Starchy Vegetables: Potatoes, peas, sweet potatoes, yams, corn, cassava, artichoke, etc. - Refined Carbs: Bread, pasta, pastries, tortilla, sandwich, etc.

What is the main rule of keto? ›

What are the basic rules of keto? People who follow a keto diet focus mainly on high-quality fats and proteins while keeping carb intake to 5–10% of their total calories. To benefit from the diet, you'd need to opt for less processed foods such as nuts and fresh fish.

Is cheese keto-friendly? ›

All types of cheese are allowed on the keto diet, as cheese is relatively low in carbohydrate, which complies with the key principle of the keto diet. The Ketogenic diet or “keto” diet is a low carbohydrate and high fat eating plan.

What foods speed up ketosis? ›

Eating a diet rich in fat while also limiting carbs prompts your body to burn fat, rather than glucose, for fuel. That's the basis of ketosis. People following a ketogenic diet get 75% of their calories from fats, which ideally should come from avocado, nuts, olive oils, and other unsaturated, or healthy, fats.

Can I eat bananas on keto? ›

Bananas. Bananas may be great for muscle recovery, reducing bloat, and calming an upset stomach, but they're on the list of foods you can't eat on the keto diet. With 25g of carbs per 100g serving, bananas are too high in carbs.

Is peanut butter keto? ›

Peanut butter can definitely be part of a keto diet, but it's best to stick to plain options that are free of extra flavors and sweeteners. Almond butter is a good choice, too, and it's slightly lower in carbs. Additionally, you should be mindful of your portion size if you're trying to lose weight.

What will throw me out of keto? ›

To avoid being kicked out of ketosis, we should avoid the high-carb vegetables. These include pumpkins, sweet potatoes, peas, corns, potatoes, yams, and sweet corns are some examples of high-carb vegetables.

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