Madeleine Hull
The ketogenic diet is a high-fat, moderate-protein, and very low-carbohydrate diet. The reduction of carbohydrates puts the body into a metabolic state called ketosis, where the body starts breaking down stored fat into ketone bodies to use for energy. This diet can help burn fat and reduce appetite. However, it may also lead to nutrient deficiencies, constipation, and potential health risks. To stay in ketosis, it is crucial to limit or avoid certain foods, such as bread, pasta, rice, potatoes, sweets, and fruits high in natural sugars. Instead, the keto diet includes meat, fish and seafood, cheese, eggs, vegetables, nuts, and berries.
Keto Diet: What to Eat and What to Avoid
| Characteristics | Values |
|---|---|
| Diet Type | High-fat, moderate-protein, very low-carbohydrate |
| Carbohydrate Percentage | 5-10% of energy intake from carbohydrates |
| Foods to Eat | Fish, seafood, meat, poultry, eggs, non-starchy vegetables (broccoli, zucchini, leafy greens), avocados, berries, nuts, seeds, high-fat dairy products, olive oil, high-cocoa chocolate |
| Foods to Avoid | Bread, pasta, rice, potatoes, french fries, soft drinks, candy, cakes, beer, liqueurs, mixed drinks, starchy vegetables (carrots, peas), high-sugar condiments |
| Foods in Moderation | Fruits (especially berries, avocados, raspberries, watermelon, coconut), legumes, beans, natural fruit juice, alcohol |
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What You'll Learn
Eat meat, fish, and seafood
Meat, fish, and seafood are all keto-friendly foods. Meat and poultry are considered staple foods on the keto diet because they contain no carbs and are rich in B vitamins and minerals. They are also great sources of high-quality protein, which may help preserve muscle mass during a very low-carb diet. When choosing meat, consider opting for grass-fed options as they have higher amounts of omega-3 fats and conjugated linoleic acid (CLA) compared to meat from grain-fed animals.
Fish and seafood are excellent additions to a keto diet as they are rich sources of omega-3 fatty acids, which offer a variety of health benefits. Fatty fish like salmon, sardines, mackerel, and albacore tuna are particularly good choices as they are high in omega-3 fats, which have been linked to improved blood sugar management and lower insulin levels in people with diabetes. Additionally, frequent fish intake may also contribute to improved brain health and a reduced risk of certain diseases.
Canned seafood is a convenient option for those on a keto diet. Look for products that are higher in fat and have no added sugars. Oil-packed seafood, such as smoked sardines, oysters, and wild-caught fish, are excellent choices. You can also use canned seafood to create keto-friendly meals, such as shrimp scampi with added butter and cheese, served with cucumber slices or celery sticks.
It is important to note that if you are pregnant, breastfeeding, or planning to become pregnant, it is recommended to avoid consuming raw or undercooked fish to reduce the risk of exposure to potentially harmful bacteria.
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Avoid starchy vegetables
The keto diet is a high-fat, moderate-protein, and very low-carbohydrate diet. The reduction of carbohydrates puts the body into a metabolic state called ketosis, where the body uses fat as energy instead of carbohydrates.
Starchy vegetables are off the menu on the keto diet. This is because they are high in carbohydrates. Examples of starchy vegetables to avoid include potatoes, carrots, peas, and corn. Instead, opt for non-starchy vegetables such as broccoli, cauliflower, cucumber, celery, radishes, cabbage, avocado, zucchini, and leafy greens. These vegetables are low in calories and carbohydrates but packed with vitamins, minerals, and fiber.
While starchy vegetables are a good source of fiber, there are other keto-friendly foods that can provide this nutrient. For example, nuts and seeds are low-carb foods that are rich in fiber. In particular, almonds have 2.6 g of net carbs per ounce. Other keto-friendly foods that are high in fiber include avocados, berries, and dark, leafy greens.
It is important to note that while the keto diet restricts starchy vegetables, it does allow for some other sources of carbohydrates. For example, legumes and beans have a high carb content but can be included in small portions. Similarly, natural fruit juice is high in natural sugars, but a small glass can be enjoyed occasionally.
Overall, while following a keto diet, it is crucial to avoid starchy vegetables due to their high carb content. However, this does not mean missing out on important nutrients like fiber, as there are plenty of keto-friendly alternatives.
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Dairy is a good source of fat
The keto diet is a high-fat, very low-carbohydrate, and moderate-protein diet. The diet aims to shift the body's metabolism away from carbohydrates and towards fat. This metabolic state is called ketosis, where the body uses fat as its primary fuel source instead of carbohydrates.
It is important to remember that not all fats are created equal. Certain fat sources should be limited or avoided on a keto diet, as they may negatively affect your health. These include processed meats, fried foods, and anything containing trans fat.
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Avoid sugar and sweeteners
The keto diet is a high-fat, moderate-protein, and very low-carbohydrate diet. The reduction of carbohydrates puts the body into a metabolic state called ketosis, where the body uses fat instead of carbohydrates as its primary energy source.
Sugar and sweeteners are a big no-no on the keto diet. This includes most fruits, which are naturally high in sugar. Even natural fruit juice is high in sugar, and juices with added sugars are even higher in total sugars. So, while berries, avocados, raspberries, unsweetened açaí puree, watermelon, and coconut are keto-friendly, most other fruits should be avoided.
Sugar-packed condiments like ketchup, barbecue sauce, and sweet chili sauce are also a no-go. These don't provide much in terms of nutrients or fiber, and it's easy to eat a lot of them, so the carbs can add up quickly. Instead, opt for hot vinegar-based sauces, mayonnaise, mustard, or spices to add flavor without the carbs.
Be mindful of your dairy consumption as well. Milk, for example, contains milk sugar, with one glass providing 15 grams of carbs. Flavored low-fat yogurt is also often full of added sugar. Greek yogurt, on the other hand, is a good option, as it has few carbs and is high in protein.
Finally, when it comes to drinks, beer, liqueurs, and mixed liquor-based drinks are high in carbs and low in nutrients, so they should be limited. Natural fruit juices, soft drinks, and cocktails made with juice or soda are also high in sugar and carbs.
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Alcohol is high in carbs
The keto diet is a high-fat, very low-carbohydrate, and moderate-protein diet. Carbohydrates are the body's primary source of energy, but on a strict ketogenic diet, only 5% to 10% of energy intake comes from carbohydrates. The reduction in carbohydrates puts the body into a metabolic state called ketosis, where it starts breaking down stored fat into ketone bodies for energy.
Alcohol is the second most calorie-dense nutrient, packing seven calories per gram. It is prioritized over other nutrients for metabolism and can slow down fat burning and increase fat storage. While pure forms of liquor like rum, whiskey, gin, and vodka are carb-free, beer, liqueurs, and mixed drinks have a high carb and low nutrient count. The carbs in mixed drinks usually come from sodas, juices, purees, and liqueurs used as mixers. Sweeter wines also have more added sugars, increasing the carb count.
If you are on a keto diet, it is important to consider the carb content of alcoholic drinks. While distilled spirits are carb-free, the addition of mixers and liqueurs introduces carbohydrates. Beer, wine, cider, and malt beverages vary in carb content, with lighter varieties generally having lower carb counts. For example, wine and light beer contain 3-4 grams of carbohydrates per serving.
When consuming alcohol on a keto diet, moderation is key. Excessive alcohol intake has been associated with a higher risk of weight gain, while moderate consumption may be linked to a lower risk. Additionally, alcohol provides little to no micronutrients like vitamins and minerals. Therefore, it is recommended to prioritize nutrient-rich foods within your daily carb allowance.
In summary, alcohol can be high in carbs, depending on the type of beverage and the presence of mixers. When following a keto diet, it is crucial to consider the carb content of alcoholic drinks and consume them in moderation while prioritizing nutrient-rich foods.
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Frequently asked questions
The keto diet is a high-fat, moderate-protein, and very low-carbohydrate diet. The reduction of carbohydrates puts the body into a metabolic state called ketosis, where the body uses fat instead of carbohydrates as its primary energy source.
Foods that are typically allowed on the keto diet include meat, fish, seafood, eggs, cheese, butter, cream, non-starchy vegetables (such as broccoli, cauliflower, zucchini, and leafy greens), avocados, berries, nuts, seeds, and high-cocoa chocolate.
Foods that are typically avoided on the keto diet include bread, pasta, rice, potatoes, sweets, candy, starchy vegetables like carrots and peas, most fruits, legumes, and alcoholic beverages.
Yes, one of the risks of the keto diet is the potential for nutrient deficiencies, especially in fiber and B vitamins. It is important to ensure adequate fiber intake for gut health. Additionally, the keto diet may lead to constipation and other unpleasant side effects.
Yes, there are keto-friendly substitutes available for some foods, such as keto bread, keto pasta, keto rice, and keto cookies. However, these highly processed substitutes may have limited nutritional value and may slow down weight loss progress.
