
The ketogenic diet is a high-fat, low-carb diet that was originally designed for epilepsy patients but has become popular for weight loss. It requires careful planning, and you may need to decrease your portion sizes to help fit certain foods in. Fruit is known to be high in carbs, so it is often thought to be off-limits on the keto diet. However, with the right picks, you can enjoy fruit on a keto diet. Low-carb fruits include avocado, raspberries, lemons, strawberries, blueberries, blackberries, plums, and watermelon.
| Characteristics | Values |
|---|---|
| Carbohydrates | One cup of diced watermelon contains 11.5 grams of carbohydrates, including 0.6 grams of fiber and nine grams of sugar. |
| Nutrients | Watermelon is rich in lycopene, an antioxidant that may protect against cell damage and reduce inflammation. It also contains vitamin C, copper, and potassium. |
| Keto-friendliness | Watermelon is considered keto-friendly, but only in small amounts. It is relatively low in carbs compared to other fruits, but eating large amounts can kick you out of ketosis. |
| Portion size | On a 2,000-calorie diet, restricting carb intake to 25 grams per day, a single serving of watermelon could take up nearly half of the daily carb allotment. |
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What You'll Learn
- Watermelon is low in carbs compared to other fruits
- You can eat watermelon on keto, but only in small amounts
- Other keto-friendly fruits include avocados, raspberries, and lemons
- The keto diet is a high-fat, low-carb diet that aims to put your body in a state of ketosis
- Watermelon is a good source of hydration and nutrients, including vitamins and minerals

Watermelon is low in carbs compared to other fruits
The keto diet is a high-fat, low-carb diet that was originally designed for epilepsy patients but has become popular for weight loss. It involves limiting carb intake to just 25 grams per day, which can make it challenging to include fruit in your diet. However, compared to other fruits, watermelon is relatively low in carbs.
A cup of diced watermelon contains about 11 grams of carbohydrates, including 0.5 to 0.6 grams of fiber and nine grams of sugar. This means that a single serving of watermelon could take up nearly half of your daily carb allotment on a keto diet. However, careful planning and reduced portion sizes can help you include watermelon in your keto diet. For example, mathematically, you could enjoy two to 2.5 cups of watermelon per day on a keto diet, assuming you eat no other carbs.
In addition to being low in carbs, watermelon provides hydration and an array of vitamins and minerals, including antioxidants like vitamin C and lycopene, and minerals such as potassium and copper. Lycopene is a plant nutrient that gives watermelon its pink hue and is beneficial for fighting inflammation and diseases such as cancer, heart disease, and diabetes.
Other low-carb fruits that can be included in a keto diet include avocados, raspberries, lemons, strawberries, olives, tomatoes, cantaloupe, berries, and peaches. These fruits are not only low in carbs but also offer important nutrients, making them a good fit for a well-planned ketogenic diet.
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You can eat watermelon on keto, but only in small amounts
The keto diet is a high-fat, low-carb diet that aims to send the body into a state of ketosis, where it uses stored fat as fuel instead of carbohydrates. This often means cutting out higher-carb foods like fruits. However, some fruits are lower in carbs and can be enjoyed in moderation on a ketogenic diet.
Watermelon is one such fruit that can be included in a keto diet, but in small amounts. Compared to other fruits, watermelon is relatively low in carbs. A cup of diced watermelon contains about 11 grams of carbohydrates, including 0.5-0.6 grams of fiber and nine grams of sugar. This amounts to about 11 grams of net carbs, which is the total carbohydrate content minus the fiber content since the body cannot digest fiber.
Kim Yawitz, a registered dietitian, explains that while watermelon can be a part of a keto diet, large amounts can kick you out of ketosis if you're getting too many carbs from other sources. Yawitz suggests that mathematically, one could enjoy two to 2.5 cups of watermelon per day on keto, assuming no other carbs are consumed. However, this scenario is unlikely, as even non-starchy vegetables contain carbs.
To include watermelon in your keto diet, careful planning and reduced portion sizes may be necessary to stay within your daily carb allotment. It is recommended to consult with a registered dietitian to ensure you're getting enough important nutrients like fiber and incorporating the right types and amounts of carbs.
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Other keto-friendly fruits include avocados, raspberries, and lemons
The keto diet is highly restrictive and requires strict adherence to maximise results. Most fruits are high in carbs, so people on the keto diet can only eat them in small amounts. However, some fruits are lower in carbs than others and can be enjoyed as part of a keto diet. These include avocados, raspberries, and lemons.
Avocados are low in carbs and high in healthy fats and fibre, as well as a number of other important vitamins and minerals. A whole avocado contains only 17 g of carbs, 14 g of which is fibre, and 30 g of fat. They are also a good source of potassium and B vitamins.
Raspberries are another fruit that is very keto-friendly. They are low in carbs and can be enjoyed in moderation as part of a keto diet. Some people on the keto diet enjoy raspberries with yoghurt, peanut butter, or cream.
Lemons are also keto-friendly, with the juice from one lemon containing only 3 g of carbohydrates and around 11 calories. Lemon juice also provides a dose of immune-boosting vitamin C, an antioxidant that fights free radicals and promotes healthy digestion.
In addition to these fruits, watermelon can also be part of a keto diet, but it may require careful planning and decreased portion sizes to stick within daily carb limits.
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The keto diet is a high-fat, low-carb diet that aims to put your body in a state of ketosis
Watermelon can be a part of a keto diet, but it depends on your overall intake. Compared to other fruits, watermelon is relatively low in carbs, with about 11 grams of net carbs per cup of diced watermelon. However, careful planning and reduced portion sizes are often necessary to fit watermelon into a keto diet while staying within your daily carb limit. For example, on a 2,000-calorie diet, you may restrict your carb intake to just 25 grams per day, and a single serving of watermelon could take up nearly half of that allotment.
Kim Yawitz, a registered dietitian, explains that while small amounts of watermelon can be included in a keto diet, consuming large amounts or getting too many carbs from other sources can disrupt ketosis. Yawitz suggests that, mathematically, one could consume two to 2.5 cups of watermelon per day on a keto diet, assuming no other carbs are consumed. However, this scenario is unlikely, as even non-starchy vegetables contain carbohydrates.
It is important to note that the keto diet is highly restrictive, and many fruits are typically considered off-limits. However, with careful planning, some fruits can be included in moderation. In addition to watermelon, keto-friendly fruits include avocados, raspberries, strawberries, lemons, olives, cantaloupe, and tomatoes. These fruits are low in net carbs and can provide various nutrients, such as healthy fats, vitamins, minerals, and fiber.
Consulting with a registered dietitian is recommended to ensure that your diet provides all the necessary nutrients, such as fiber, and to help incorporate the appropriate amount and types of carbohydrates while following a keto diet.
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Watermelon is a good source of hydration and nutrients, including vitamins and minerals
The keto diet is a high-fat, low-carb diet that was originally designed for epilepsy patients but has become popular for weight loss and diabetes prevention. It requires careful planning and a strict adherence to food groups and their proportions. The diet is designed to get the body into ketosis—a metabolic state where the body uses fat stores for energy instead of carbohydrates.
In addition to lycopene, watermelon contains vitamin C, potassium, and copper. Strawberries and watermelon have similar nutrient profiles, but strawberries have more fibre than watermelon, which means their net carbs are lower. Other fruits that are similar to watermelon in terms of their nutritional profile include cantaloupe, which is also a good source of beta-carotene, vitamin K, potassium, and folate.
Watermelon is a relatively low-carb fruit compared to other fruits, but it can only be consumed in small amounts on the keto diet. A cup of diced watermelon contains about 11 grams of carbohydrates, including 0.5 to 0.6 grams of fibre and nine grams of sugar. This means that mathematically, one could consume two to 2.5 cups of watermelon per day on a keto diet, assuming no other carbs are consumed. However, this is not a very realistic scenario, as even non-starchy vegetables contain carbs.
Therefore, while watermelon can be consumed on the keto diet, it requires careful planning and decreased portion sizes to stick within the daily carb allotment.
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Frequently asked questions
Yes, but in small amounts. Watermelon is considered a low-carb fruit compared to other fruits, so it can be enjoyed as part of a keto diet. However, careful planning and decreased portion sizes are required to stick within the daily carb allotment.
One cup of diced watermelon contains about 11 grams of carbs and 0.5 grams of fiber, which means it has about 11 grams of net carbs. According to Kim Yawitz, a registered dietitian, you could enjoy two to 2.5 cups of watermelon per day on a keto diet, assuming you eat no other carbs.
Other low-carb fruits that can be eaten on a keto diet include avocados, raspberries, strawberries, cantaloupe, olives, lemons, blueberries, blackberries, and tomatoes.











































