Madeleine Hull
The keto diet is a low-carb, high-fat eating plan that can help with weight loss, acne, and the risk of cancer. However, it can be challenging to ensure you're eating enough of the right foods to stay full and get the nutrients you need. Not consuming enough fat on a keto diet can lead to vitamin deficiencies, an overreliance on protein, and digestive issues. Eating too few carbs can also negatively impact your energy levels and ability to exercise. It's important to understand the keto diet and plan meals to ensure you're getting enough of the right nutrients and not too few calories.
Characteristics and values related to not eating enough on a keto diet
| Characteristics | Values |
|---|---|
| Not eating enough fat | Can lead to vitamin deficiencies, making it harder to metabolise fat. |
| Can cause hunger, as fat helps people feel full. | |
| Can cause an overreliance on protein, leading to protein poisoning. | |
| Can cause digestive issues such as constipation, bloating, and diarrhoea. | |
| Can prolong and amplify carb cravings. | |
| Not eating enough calories | Can lead to tiredness and exhaustion. |
| May not be nourishing your body. | |
| Can cause hunger. | |
| Not eating enough carbs | Can cause weakness and fatigue, also impacting workouts. |
| Can lead to constipation. | |
| May not be a sustainable long-term eating pattern. |
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What You'll Learn
Not eating enough fat
The keto diet is a low-carb, high-fat diet. The basic principle is that lowering carbohydrate intake puts the body in a ketogenic state, where it becomes efficient at burning fat and using it for energy instead of glucose.
The keto diet is not just a 'low-carb, high-fat' fad. The breakdown of calories should be 70-80% from fat, 20-25% from protein, and 5-10% from carbohydrates. Eating enough fat on keto is important because it helps people feel full and provides enough calories for the body to function correctly. If a person does not consume enough fat, they may not feel full, leading to snacking and consuming more calories than needed, resulting in weight gain.
If you do not eat enough fat on keto, your body will go into survival mode, negatively impacting your wellbeing. You will feel hungrier, causing your body to prioritise storing fat, making fat loss nearly impossible.
To ensure you are eating enough fat, it is important to understand the types of fat to eat and which to avoid. While on keto, it is essential to eat healthy fats, such as avocado, butter, cheese, and bacon, while avoiding saturated and trans fats.
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Not eating enough calories
The keto diet is a low-carb, high-fat diet. The diet typically restricts carbohydrates to 5-10% of a person's daily calorie intake. This usually means consuming between 20 and 50 grams of carbohydrates per day for someone eating 2000 calories.
The keto diet can be challenging for those who struggle to feel full or satisfied on a low-calorie diet. This is because most low-carb foods are very low in calories. For example, a person may find themselves eating only 800-900 calories a day when their recommended intake is 1200.
Not consuming enough calories on the keto diet can lead to feelings of constant tiredness and exhaustion. This can negatively impact a person's energy levels and exercise performance. It can also cause hunger, which may lead to snacking and consuming more calories than intended, resulting in weight gain.
To avoid not eating enough calories on the keto diet, it is important to ensure you are eating enough healthy fats. This is because 75% of calories on the keto diet should come from fat. Healthy fats include avocado, butter, cheese, and bacon, as long as they are not saturated or trans fats.
It is also important to be mindful of your body's needs. If you are very active, you may need to consume more calories to nourish your body adequately.
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Not eating enough carbs
The keto diet is a low-carb, high-fat diet. Carbohydrates should represent only 5–10% of a person’s calorie intake on the ketogenic diet. Specifically, most keto diets require a person to cut down to between 20 and 50 grams of carbs each day on a 2000-calorie diet.
If you do not eat enough carbs, you may experience weakness and fatigue, sometimes called "keto flu". This can negatively impact your workouts, as you may not feel like you have the strength to push through a session.
Another consequence of not eating enough carbs is constipation. This is because the body is missing out on fibrous, hydrating foods when we slash our carbohydrate intake, and both fiber and water are essential for regular digestion. This can also lead to bloating, diarrhea, and other gastrointestinal issues.
In addition, when you don't eat enough carbs, you also lose fruits, whole grains, and vegetables, which deliver fiber but also vitamins, minerals, and antioxidants to your diet. It can be hard to make up for these lost nutrients on a low-carb diet, and it is important to eat from every food group for optimal health.
Finally, if you do not eat enough carbs, you may not feel full, which can lead to snacking and consuming more calories than you need, resulting in weight gain.
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Not eating the right foods
The keto diet is a low-carb, high-fat diet. The majority of your calories should come from fat when eating keto. However, it is a common misconception that overeating fat will lead to more body fat. In reality, it is excess calories from any food group that leads to weight gain.
If you do not eat enough fat on keto, your body will go into survival mode, making you feel hungrier and causing your body to prioritise storing fat. This will make fat loss nearly impossible. Eating enough fat will help you stay full and provide enough calories for your body to function correctly.
It is important to eat the right types of fats. These include healthy fats such as avocado, butter, cheese, and bacon, as long as they are not saturated or trans fats. Fatty pork from pasture-raised animals is especially high in vitamin D, which is a vitamin that most Americans are deficient in.
Another common mistake is not eating enough vegetables and fruits, which contain essential macros, fibres, vitamins, minerals, and antioxidants that your body needs to function well. While it is true that most vegetables are carb-heavy, it would be a mistake to avoid them on the keto diet. Instead, opt for low-calorie fruits and vegetables such as mushrooms, raspberries, cucumbers, broccoli, and leafy greens.
In addition, eating too many high-inflammatory foods will negatively impact your success on the keto diet. Excess refined sugars can lead to health issues such as acne, sleep disturbances, and an increased risk of coronary artery disease.
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Not eating enough vegetables and fruit
The keto diet is a low-carb, high-fat diet. Carbohydrates should represent only 5–10% of a person's calorie intake on the keto diet, with 75% coming from fats and 20% from proteins. This means that most keto diets require a person to cut down to between 20 and 50 grams of carbohydrates each day on a 2000-calorie-per-day diet.
While the keto diet may drastically limit many fruits and vegetables, it is a mistake to avoid them altogether. Vegetables and fruits contain essential macros, fibres, and nutrients that the body needs to function well. For example, research shows that getting enough fruit and vegetables is important for reducing the risk of certain cancers and chronic conditions.
When following a keto diet, it is best to eat low-carb vegetables and fruits. Above-ground vegetables tend to be lower in carbohydrates than root vegetables. Examples of keto-friendly vegetables include spinach, zucchini, lettuce, cucumbers, cabbage, asparagus, kale, broccoli, cauliflower, olives, and avocado. Some vegetables should be eaten in moderation, such as bell peppers, Brussels sprouts, and green beans, as they are slightly higher in carbohydrates.
Similarly, when it comes to fruit, it is best to choose low-carb options such as watermelon, berries, cantaloupe, and avocado. Tomatoes can also be eaten in moderation.
It is important to note that the keto diet may not be suitable for everyone. It is recommended to consult a doctor or dietitian before starting the keto diet, especially if you have any chronic health conditions.
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Frequently asked questions
Not eating enough fat on a keto diet can have several negative consequences, including vitamin deficiencies, digestive issues, and hunger. Eating enough fat is crucial because it helps you feel full and provides the calories your body needs to function properly.
Recommended sources of fat for a keto diet include healthy options such as avocado, butter, cheese, bacon, and fatty pork from pasture-raised animals. It's important to avoid artificial trans fats, processed meats, fried foods, and excessive saturated fat.
Signs of not eating enough carbohydrates on a keto diet include weakness, fatigue, and a negative impact on your workouts. This is often referred to as "keto flu." It is important to note that the keto diet should not be a long-term eating pattern unless advised by a healthcare professional.
To ensure you're getting enough calories on a keto diet, it's important to monitor your calorie intake and listen to your body's hunger cues. If you're constantly tired and hungry, you may need to adjust your diet to include more calorie-dense foods that align with the keto guidelines.
