Dante Carrillo
The ketogenic (keto) diet is a high-fat, low-carbohydrate, and moderate-protein diet. The diet typically focuses on foods that are full-fat and low in carbohydrates, with a moderate amount of protein. The keto diet is gaining popularity due to its potential benefits for weight loss, blood sugar management, and the prevention of cancers and neurodegenerative conditions. The diet can be challenging for most people to keep up with in the long term, and the long-term effects on overall health are poorly understood and require more research. Some foods that can be eaten on a keto diet include meat, poultry, fish, eggs, non-starchy vegetables, avocados, berries, nuts, seeds, and high-fat dairy products.
| Characteristics | Values |
|---|---|
| Carbohydrates | Very low |
| Fat | High |
| Protein | Moderate |
| Weight Loss | Helps with weight loss |
| Health Benefits | Potential benefits for blood sugar management, preventing cancers and neurodegenerative conditions, and treating epilepsy |
| Food Options | Meat, poultry, eggs, fish and shellfish, non-starchy vegetables, avocados, berries, nuts and seeds, high-fat dairy products, olive oil and other oils, high-cocoa chocolate, cheese, Greek yogurt, cottage cheese |
| Nutritional Concerns | May not eat enough fiber and B vitamins |
| Side Effects | Keto flu, nutrient deficiencies |
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What You'll Learn
High-fat foods like eggs, meats, avocados, and oils
The keto diet is a high-fat, low-carb diet that has gained popularity due to its potential benefits for weight loss, blood sugar management, and preventing cancers and neurodegenerative conditions. When following a ketogenic diet, it is crucial to focus on healthy fat sources. Here are some examples of high-fat foods like eggs, meats, avocados, and oils that are suitable for a keto diet:
Eggs
Eggs are a staple in keto diets. They are nutritious and versatile, making them an easy addition to a ketogenic diet. A single 50-gram egg contains about 5 grams of fat, 7 grams of protein, and 80 calories. It is recommended to eat whole eggs as the yolk is rich in B vitamins and antioxidants that support eye health. Hard-boiled eggs can be a great snack, or you can add them to a salad or have them poached with sliced avocado and tomato.
Meats
Meat and poultry are considered staple foods on the keto diet because they are naturally carb-free and high in fat. Lean meats, such as skinless chicken and turkey, are recommended over fatty meats like beef, lamb, and pork, which are high in saturated fat. Grass-fed meat is preferable as it contains more omega-3 fats and conjugated linoleic acid (CLA).
Avocados
Avocados are an excellent source of heart-healthy monounsaturated fatty acids (MUFAs). They are also packed with fiber and essential vitamins and minerals. Half an avocado contains 10.5 grams of fat, 6 grams of total carbs, and 5 grams of fiber, resulting in only 1 gram of net carb. Avocados can be added to salads, smoothies, or breakfast plates to boost fat and nutrient content.
Oils
Oils such as olive oil, avocado oil, coconut oil, canola oil, flax oil, and hemp oil are healthy sources of fat and contain no carbohydrates. Olive oil, in particular, is a staple of the heart-healthy Mediterranean diet and fits well into a keto diet. It can be used for light sautéing, dressings, or drizzled over cooked meats or vegetables.
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Low-carb foods like non-starchy vegetables and shellfish
The keto diet is a very low-carb, high-fat diet. It involves eating a variety of animal proteins, dairy, vegetables, plant-based foods, and fats and oils.
Non-starchy vegetables are an important food group on the keto diet. They are full of vitamins, minerals, fibre, and phytochemicals, and are low in calories and carbohydrates. Examples of keto-friendly non-starchy vegetables include celery, kale, mushrooms, zucchini, broccoli, green beans, spinach, bell peppers, lettuce, and arugula. These vegetables can be prepared in a variety of ways, such as in a salad or as a side dish. For example, bacon-wrapped asparagus is a delicious, keto-friendly snack, as asparagus is a good source of iron, potassium, and vitamin C, with only 3.88 grams of carbs per 100-gram serving. Another option is to add mushrooms and full-fat cheese to an egg yolk omelet. Mushrooms are hearty vegetables that are packed with potassium and have only 3.26 grams of carbohydrates per serving.
Shellfish are also a great low-carb option on the keto diet. They are a good source of protein and various other nutrients. For example, mussels are an excellent source of vitamin B12 and omega-3 fatty acids, which are crucial for fetal development and cardiovascular health. Oysters are a fantastic source of zinc, and crab, shrimp, and lobster are also nutrient-dense options. Salmon is another popular choice, as it is rich in protein and omega-3 fatty acids, and is very low in carbs. However, it is important to note that the carb count in shellfish varies by type, so it is recommended to carefully track carb intake to stay within the keto diet guidelines.
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Dairy products like cheese, Greek yogurt, and cottage cheese
There are hundreds of types of cheese, and most of them are suitable for a keto diet. Some examples of keto-friendly cheeses include soft-ripened cheese (like brie and Camembert), hard-aged cheese (like Swiss, cheddar, and provolone), and semisoft cheese (like Monterey Jack and havarti).
Greek yogurt is another dairy product that can be included in a keto diet. It is recommended to choose plain Greek yogurt over other types, as it contains fewer carbs and more protein. Plain Greek yogurt can also be used as a substitute for sour cream in keto recipes. It is also a natural probiotic that supplies healthy bacteria to the gut, improving microbial balance and promoting better brain health.
Cottage cheese is also a keto-friendly option, providing healthy fats, calcium, vitamin D, phosphorus, selenium, zinc, and B vitamins. It is recommended to choose full-fat, plain cottage cheese without added ingredients, and organic options are ideal for maximum health benefits. One half-cup (100 grams) of full-fat cottage cheese (4% milk fat minimum) contains 11 grams of protein. Cottage cheese can be added to salads, keto-friendly desserts, casseroles, and vegetable dips, or enjoyed on its own as a side dish.
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High-protein foods like meat, poultry, and eggs
Meat, poultry, and eggs are high-protein foods that are recommended as part of a keto diet. Meat and poultry contain no carbohydrates and are rich in B vitamins, potassium, selenium, zinc, and several other important minerals. They are also a great source of high-quality protein, which may help preserve muscle mass during a very low-carb diet. According to a 2016 study, eating meat and poultry can increase feelings of fullness. It is recommended to choose grass-fed meat, as it contains more omega-3 fats and conjugated linoleic acid (CLA) than meat from grain-fed animals. While processed meats like bacon and sausage are allowed on keto, they are not the best for heart health and may increase the risk of certain types of cancer. Therefore, it is best to consume them in moderation and opt for chicken, beef, and fish more often.
Eggs are another staple food in the keto diet. They are high in protein, B vitamins, minerals, and antioxidants. One large egg (50 g) contains less than 1 g of carbohydrates and over 6 g of protein. Similar to meat and poultry, eggs can also increase feelings of fullness. They contain antioxidants such as lutein and zeaxanthin, which are beneficial for eye health. While egg yolks are high in cholesterol, they do not appear to increase the risk of heart disease. It is important to consume whole eggs instead of just egg whites, as most of the egg's nutrients are found in the yolk.
In addition to meat, poultry, and eggs, other sources of protein that can be included in a keto diet are Greek yogurt, cottage cheese, nuts, and seeds. Greek yogurt and cottage cheese are nutritious, high-protein foods that can be eaten in moderation on keto, despite containing some carbohydrates. Nuts and seeds are a healthy, high-fat, low-carb food that provides fiber and protein. They are also a good source of healthy polyunsaturated and monounsaturated fats.
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Fruits and vegetables in moderation
The keto diet is a low-carb, high-fat eating plan. Carb intake is often restricted to less than 20-50 grams per day. Fruits and vegetables are good sources of nutrients that are important for daily body functions. However, they are also naturally high in carbohydrates. Therefore, it is recommended to consume fruits and vegetables in moderation on a keto diet.
Avocados are a great addition to a keto diet. They are often used like a vegetable in savory dishes but are actually seed-bearing fruits. They are low in carbs and contain various essential nutrients, including vitamin C, vitamin K, potassium, and folate. They also contain healthy fats, which make them an even more keto-friendly choice. The recommended serving size of avocado is around one-third of a medium-sized fruit.
Olives are another excellent fruit choice for a keto diet. They are higher in fat than carbs and contain many nutrients, such as antioxidants, monounsaturated fats, and vitamin E. The healthy fats in olives are linked to heart health benefits, and the antioxidants may help protect against chronic diseases.
Tomatoes are a low-carb fruit suitable for a keto diet. They are low in calories and high in beneficial plant compounds, including lycopene, beta carotene, and naringenin. They also contain essential vitamins and minerals such as potassium and folate.
Other fruits that can be consumed in moderation on a keto diet include lemons, raspberries, strawberries, blueberries, blackberries, peaches, cantaloupe, and star fruit. These fruits are relatively low in carbs and offer various nutrients. However, it is important to monitor your daily carb intake and adjust your portion sizes accordingly.
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Frequently asked questions
The keto diet is a high-fat, low-carbohydrate, and moderate-protein diet. It is designed to change the fuel the body uses for energy, from carbohydrates to fat.
Foods that are keto-friendly include fish and seafood, meat and poultry, non-starchy vegetables, avocados, berries, nuts and seeds, eggs, high-fat dairy products, olive oil and other oils, and high-cocoa chocolate.
Foods that are high in carbohydrates should be avoided on a keto diet. This includes cereal, crackers, rice, pasta, bread, and beer.
The keto diet has been shown to help with weight loss and improve health parameters associated with excess weight, such as insulin resistance, high blood pressure, and elevated cholesterol. It has also been used to manage epilepsy and may have positive effects on brain health.
The keto diet can be challenging to follow and maintain in the long term. It may also lead to nutrient deficiencies, especially if you don't get enough fiber and B vitamins. When starting the diet, some people experience the "keto flu," which goes away once your body adjusts to the new diet.
