Is Watermelon Keto-Friendly? (2024)

Compared to many other fruits, watermelon is relatively low in carbohydrates. Depending on your overall diet, you may be able to consume watermelon in moderation while following a ketogenic diet.

Watermelon is a delicious and refreshing summertime staple.

In addition to promoting hydration thanks to its high water content, it’s a good source of several nutrients, including vitamins C and A (1).

What’s more, watermelon contains several antioxidants, such as lycopene, which may be linked to improved heart health and a lower risk of certain cancers (2).

You may wonder whether watermelon can fit into the ketogenic, or keto diet, an eating pattern that involves limiting your carb intake and eating a high amount of healthy fats instead.

Given that the keto diet is highly restrictive and requires strict adherence to maximize results, many fruits are considered off-limits, causing some to find it somewhat challenging to follow.

This article determines whether watermelon can be enjoyed as part of a healthy keto diet.

Because most fruits are high in carbs, those following the ketogenic diet can only enjoy them in small amounts.

However, compared with other types of fruit, watermelon is relatively low in carbs.

In fact, 1 cup (152 grams) of diced watermelon contains about 11.5 grams of carbs and 0.5 grams of fiber, which means that it has about 11 grams of net carbs (1).

Net carbs is a term used to describe the number of carbs in a portion of food that is absorbed by the body. They’re calculated by subtracting the grams of fiber from the grams of total carbs.

Whether watermelon can fit into a ketogenic diet depends on what else you’re eating during the day.

On a 2,000-calorie diet, you may be restricting your carb intake to just 100 calories, or 25 grams, per day.

Therefore, a single serving of watermelon could take up nearly half of your daily carb allotment.

Though you can definitely fit watermelon into a keto diet, it may take careful planning and require you to reduce your portion sizes to keep your carb count in check.

Summary

Watermelon can fit into a ketogenic diet, but it may require careful planning and decreased portion sizes to stick within your daily carb allotment.

Restricting your carb intake doesn’t mean that you need to cut fruit out of your diet altogether.

In fact, several fruits can easily fit into a well-planned ketogenic diet.

For instance, avocados are low in carbs but high in heart-healthy fats and fiber, as well as a number of other important vitamins and minerals (2).

Lemons and limes are also much lower in carbs than other types of fruit (3, 4).

Plus, certain types of berries can be enjoyed in moderation.

For example, strawberries, raspberries, and blackberries contain moderate carb contents but are high in fiber, making them lower in net carbs (5, 6, 7).

Summary

In addition to watermelon, several other types of low carb fruits can be enjoyed in moderation on a ketogenic diet.

The ketogenic diet requires you to significantly cut back on carbs, which often means eliminating higher carb foods like fruit from your diet.

Fortunately, compared with other fruits, watermelon is relatively low in carbs and can be enjoyed as part of a ketogenic diet.

However, it may require careful planning, and you may need to decrease your portion sizes to help fit it in.

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It’s recommended to work with a registered dietitian to ensure that your intake of important nutrients, such as fiber, are fulfilled daily, as well as to help incorporate the right amount and types of carbs on a keto diet.

Is Watermelon Keto-Friendly? (2024)

FAQs

Is Watermelon Keto-Friendly? ›

“But in small amounts, watermelon can absolutely fit into a keto diet.” One cup of diced watermelon contains approximately 11 grams of carbohydrates, including 0.6 grams of fiber and nine grams of sugar.

What melon is best on keto? ›

Cantaloupe

The cantaloupe is a type of muskmelon closely related to other varieties of melon, such as watermelon and honeydew. Each serving of cantaloupe is relatively low in net carbs, with just 12.7 grams of carbs and 1.5 grams of fiber per cup (156 grams) ( 16 ).

Can you eat watermelon to lose weight? ›

Watermelon is one of many low-calorie fruits that can be helpful for losing weight. Not only is it good for your everyday health, but it's also a delicious snack for anyone with a sweet tooth.

Can I eat watermelon on a no sugar diet? ›

Yes, fruits like watermelon do contain sugar, but this naturally occurring sugar is different from added sugar. When it comes to reducing sugar intake, your goal should be to reduce added sugars. Fruit is beneficial as part of a healthy eating pattern because it also contains water, fiber, and other nutrients.

What is the 3 day watermelon diet? ›

It involves a relatively short (but strict) deprivation period, followed by a return to your regular diet. During the first stage, dieters eat nothing but watermelon. This stage usually last for three days. You may end up consuming the equivalent of one large watermelon each day.

What is the lowest carb fruit? ›

Watermelon, the sweet summertime treat, is 92% water and the lowest-carb fruit by far, with 7.5 carbs for every 100 grams.

Is cantaloupe ok for keto? ›

Although its fiber content is nothing to boast about, with fewer than 2 g per cup, and it has close to 13 g of sugar, cantaloupe contains a reasonable amount of carbs per serving, which makes it a fit on most keto plans.

Are cucumbers keto? ›

Cucumber is another popular salad vegetable. It contains many essential nutrients, including vitamin K. Cucumber is also suitable for the keto diet, as its carb content is just 3.63 g per 100 g. To make the carb content lower, a person can peel the cucumber before eating it.

Can I eat popcorn on keto? ›

Net carbs are calculated by taking the total grams of carbohydrate in a food and subtracting the amount of fiber. In this case, popcorn contains 6 grams of carbs per 1 cup serving and 1.2 grams of fiber, bringing the net carbs per serving to 4.8 grams. Yes friends, popcorn is indeed a keto food.

Will watermelon burn belly fat? ›

Watermelon is a good source of lycopene, an antioxidant that has been shown to help reduce belly fat. It is also a good source of water, which can help you feel full and satisfied after eating.

How many times a week should you eat watermelon? ›

“You can safely eat two servings of watermelon each day, but it's never a good idea to go on a diet that features only one type of food,” cautions Whitson. “A watermelon cleanse is a fad, like any other, and it will deprive your body of other nutrients it needs to function properly.”

What not to eat with watermelon? ›

It is recommended to avoid mixing watermelons, muskmelons, cantaloupe, and honeydrops with other fruits. “Melons should only be eaten with melons as they are digested more rapidly than other fruits. Melons have high water content, so they might not digest properly when combined with fruits,” said Dr Reddy.

Why is watermelon not keto friendly? ›

One cup of diced watermelon has 11 g of net carbohydrates because it contains 11.6 g of total carbohydrates and around 0.6 g of fiber. Ketogenic diets heavily restrict the amount of carbohydrates that a person can eat in a day.

How much watermelon will kick you out of ketosis? ›

One cup of watermelon has 11 grams of net carbs. You also need to keep in mind that the more watermelon you eat, the more the GL increases. This means that, while watermelon is keto-friendly and may even help curb those sugar cravings, you should only eat small amounts (no more than half a cup per day).

Is too much watermelon bad for you? ›

May cause digestive trouble: Watermelon contains lycopene, which when consumed every day can lead to nausea, loose stools, heartburn, and inflammation.

Can I eat as much fruit as I want on keto? ›

Fruits lower in sugars and higher in fiber may be suitable on a keto diet, but a person should eat them in moderation. Fiber is an important factor in the keto diet. A person's body cannot digest this substance.

Can you eat as much watermelon as you want and not gain weight? ›

If you're trying to lose weight, watermelon is one of the best fruits to include in your diet. It's high in water yet low in calories, which can keep your appetite in check. Watermelon contains beneficial compounds that may help burn fat and improve digestion.

Why am I craving fruit on keto? ›

Make sure you are getting enough vegetables

If your fruit cravings are very strong, they may indicate a deficiency in some essential vitamins. The key principle of a healthy low-carb diet is to eat plenty of low-carb vegetables.

Is watermelon a fast acting carb? ›

Watermelon contains many natural sugars, which makes it a fast-carb food. Add a slice or two to your pre-workout snack to boost your hydration and carb intake.

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