Leena Watts
The ketogenic (keto) diet is a high-fat, very low-carbohydrate, and moderate-protein diet. It involves getting up to 80% of your calories from fat, and it is designed to change your body's fuel source from carbohydrates to fat. While the keto diet allows for high-fat intake, not all fats are equal, and it is important to prioritize healthy fats. Fatty fish like salmon, tuna, and sardines are great additions to a keto diet as they are rich in heart-healthy omega-3 fats. Other healthy fat sources include avocados, olive oil, nuts, and seeds. However, it is recommended to limit fatty meats and cheese due to their high saturated fat content, which can negatively impact heart health.
| Characteristics | Values |
|---|---|
| Nature of the keto diet | High-fat, very low-carbohydrate, and moderate-protein |
| Percentage of calories from fat | 60-70% |
| Percentage of calories from protein | 25-30% |
| Percentage of calories from carbohydrates | 5-10% |
| Types of fat to eat | Monounsaturated and polyunsaturated fats |
| Foods containing healthy fats | Fatty fish (e.g. salmon, sardines, mackerel), avocados, olive oil, nuts, seeds, eggs, Greek yogurt, hemp hearts, chia seeds |
| Foods to limit | Fatty meats (e.g. beef, lamb, pork), cheese, butter, bacon, processed meats, fried foods, trans fats |
| Importance of portion control | Yes, overconsumption of fat can cause weight gain |
| Importance of fiber | Yes, to prevent constipation and promote gut health |
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What You'll Learn
Fatty fish is good, fatty meat is not
When following a ketogenic diet, it is important to remember that not all fats are equal. While the keto diet is high in fat, it is crucial to focus on healthy fat sources. Fatty fish like salmon, tuna, anchovies, and sardines are great additions to a healthy ketogenic diet. They are rich in high-quality protein and heart-healthy omega-3 fats. Certain types of fatty fish, such as salmon and sardines, also provide a substantial dose of vitamin D, which is critical for immune function and bone health. The American Heart Association (AHA) recommends consuming fish at least twice a week, emphasizing fatty fish such as salmon, sardines, mackerel, and bluefin tuna. Research shows that consuming 20 grams of fish per day is associated with a 4% lower risk of heart disease and heart disease-related mortality.
On the other hand, it is recommended to limit the consumption of fatty meats like beef, lamb, and pork, as they are high in saturated fat. For example, a 4-ounce serving of ground beef contains 14.4 grams of fat, of which 6 grams is saturated fat. Instead, opt for leaner meats such as skinless chicken and turkey, or choose the leanest cuts of beef. While meat is naturally carb-free and a popular choice for keto dieters, the high saturated fat content of fatty meats can have negative health impacts.
It is worth noting that even on a keto diet, portions of fat matter. While fat is the main fuel source on keto, overconsuming fat can lead to weight gain. It is important to spread out your healthy fat intake throughout the day for balanced nutrition. Additionally, it is advisable to limit omega-6 oils and prioritize healthy fat sources such as avocados, olive oil, nuts, and seeds.
In conclusion, when it comes to keto, fatty fish is good, while fatty meat is not. Fatty fish provides a rich source of healthy fats, protein, and essential vitamins, making it an excellent addition to the keto diet. At the same time, fatty meats should be limited due to their high saturated fat content, which can have negative health consequences. By choosing leaner meats and focusing on healthy fat sources, individuals can align their keto diet with their health goals.
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Avocados, olive oil, and nuts are healthy fat sources
When following a ketogenic diet, it is important to remember that not all fats are equal. While the keto diet is high in fat, it is important to focus on healthy fat sources. Avocados, olive oil, and nuts are great sources of healthy fats.
Avocados are a natural and healthy choice for a keto diet. They contain 1.9g of protein, 1.9g of carbohydrates, and 19.7g of fat per 100g. Avocados are also a good source of potassium, calcium, magnesium, and B vitamins. They are rich in heart-healthy monounsaturated fatty acids (MUFAs). Avocado oil is also a good option for high-heat cooking, with a smoke point of 520 degrees F. It is rich in anti-inflammatory MUFAs and has similar health benefits to olive oil.
Olive oil is another staple of the heart-healthy Mediterranean diet and fits well into a keto diet. It is high in oleic acid, a monounsaturated fat that supports a healthy heart and reduces the risk of heart disease. It is also naturally high in antioxidants. Olive oil is very versatile and can be used for light sauteing, dressings, or drizzled over cooked meats or vegetables.
Nuts are a great source of healthy fats, protein, and fiber, which helps keep you fuller for longer. They are also naturally high in fat and low in carbohydrates. For example, 100g of almonds contain 16.7g of fat, 8.7g of protein, and just 2.1g of carbohydrates. Nut butters are also an option, but they contain carbs, so it is important to read labels to understand the exact nutritional content.
While avocados, olive oil, and nuts are great sources of healthy fats, it is important to remember that portions of fat still matter on the keto diet. It is easy to overconsume fat, which can lead to weight gain. It is recommended to spread out your healthy fat intake throughout the day for balanced nutrition.
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Fried foods are high in trans fats, which are bad
The ketogenic diet is a high-fat, very-low-carb diet. While following a keto diet, it is important to remember that not all fats are created equal. Fried foods are included in some ketogenic diet plans, but they tend to be high in trans fats, which are bad for your health.
Trans fats are vegetable oils that have been engineered via hydrogenation to be more shelf-stable. They give foods a desirable taste and texture, and they are inexpensive to produce and last a long time. However, they have been linked to an increased risk of several diseases, from heart disease to Alzheimer's and cancer. Trans fats raise your bad (LDL) cholesterol levels and lower your good (HDL) cholesterol levels. Eating trans fats increases your risk of developing heart disease and stroke, and it is also associated with a higher risk of developing type 2 diabetes.
Many restaurants and fast-food outlets use trans fats to deep-fry foods because oils with trans fats can be used many times in commercial fryers. Fried food absorbs large amounts of these fats, and frequent consumption could lead to detrimental health effects over time. Therefore, it is best to keep your intake of fried foods minimal and focus on eating whole, minimally processed foods as much as possible.
To avoid trans fats, read food labels closely. Anything with "hydrogenated" or "partially hydrogenated" in the name contains trans fats and should be avoided.
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Cheese is controversial—it's high in saturated fat
Cheese is a popular addition to keto meals, as it is high in fat, moderate in protein, and low in carbohydrates. However, it is also high in saturated fat, which has been linked to higher LDL cholesterol levels and an increased risk of heart disease. For this reason, cheese is considered controversial on the keto diet, and while some sources recommend limiting its intake, others suggest that the calcium content in cheese may reduce its negative effects.
Cheese is a versatile ingredient that can add flavour, variety, and texture to keto meals. Popular keto-friendly cheeses include cheddar, gouda, blue cheese, goat cheese, and parmesan. These cheeses are high in fat and low in carbs, making them a good fit for the keto diet. For example, a 1-ounce (28-gram) serving of mild cheddar cheese provides 9 grams of fat, 7 grams of protein, and less than 1 gram of carbohydrates. Similarly, goat cheese has no carbohydrates and 8 grams of fat per 1-ounce serving, making it a keto-friendly option for those with lactose intolerance.
While cheese can be a good source of fat on the keto diet, it is important to remember that not all fats are equal. The keto diet encourages the consumption of healthy fats, such as avocados, olive oil, nuts, and fatty fish like salmon, tuna, and sardines. These foods provide essential nutrients and omega-3 fatty acids, which have heart-healthy benefits. On the other hand, it is recommended to limit the intake of processed meats, fried foods, and trans fats, as these can have negative health impacts.
The high-fat content of cheese makes it a popular choice for those following a keto diet, but it is important to consume it in moderation. While some studies suggest that cheese may be beneficial for weight loss, it is also high in calories and saturated fat, which can have negative health effects. Therefore, it is recommended to choose high-quality, grass-fed, and full-fat cheeses in smaller portions to fit within the keto diet and maintain a balanced nutrition profile.
In conclusion, while cheese can be a good source of fat and flavour in the keto diet, its high saturated fat content makes it a controversial choice. It is important to prioritise healthy fat sources and consume cheese in moderation, ensuring that it fits within one's calorie needs and goals. By making informed choices, individuals can include cheese in their keto diet while maintaining a balanced and nutritious meal plan.
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Hemp hearts and chia seeds are nutrient-dense fat sources
When following a ketogenic diet, it is important to remember that not all fats are equal. While the diet does require a high intake of fats, it is best to focus on whole, minimally processed foods. Fatty fish like salmon, tuna, anchovies, and sardines are great additions to a keto diet, as are eggs.
Hemp hearts, or seeds, are a great option for boosting fat intake on keto. Three tablespoons (30 grams) of hemp hearts provide 15 grams of fat. They are a complete plant-based protein source, containing all nine essential amino acids, and they also pack a variety of vitamins and minerals, including vitamin E, calcium, iron, and potassium. Hemp hearts have a mild, nutty flavor and a texture similar to sesame seeds, making them easy to mix into a variety of dishes. You can sprinkle them on yogurt, salads, roasted vegetables, or blend them into smoothies and soups.
Chia seeds are another perfect candidate for a keto diet. They are rich in healthy fats and fiber, with 1 ounce providing 12 grams of carbohydrates but only 2 grams of net carbs due to their high fiber content. Chia seeds can be used as a natural thickener and binder in dishes like puddings, soups, spreads, jams, and sauces. They can also be added to smoothies, yogurts, and oatmeal to boost the fat and fiber content.
Both hemp hearts and chia seeds are highly versatile and can be used in a variety of recipes. They can be easily incorporated into a keto diet to boost the fat intake and provide a range of essential nutrients.
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Frequently asked questions
The keto diet is a high-fat, very low-carbohydrate, and moderate-protein diet. It involves getting most of your calories from fat, and severely limiting carbohydrates.
Fatty foods that are recommended on the keto diet include fatty fish like salmon, tuna, sardines, and mackerel, which are rich in omega-3 fatty acids. Other fatty foods that can be eaten on keto include avocados, olive oil, nuts, seeds, eggs, and high-fat dairy products like cheese and butter.
Yes, it is recommended to limit fatty meats like beef, lamb, and pork, as they are high in saturated fat. Fried foods and highly processed meats should also be avoided, as they tend to be high in unhealthy trans fats and can increase the risk of heart disease and certain cancers.
While the keto diet is high in fat, it is important to remember that portions still matter. It is recommended to get about 60-75% of your calories from fat, but the exact amount depends on your calorie needs and goals. It is important to spread out your fat intake throughout the day and ensure you are getting enough fiber and nutrients from other food groups.
