If you have diabetes or know someone who does, you’ve probably wondered whether that delicious, juicy watermelon is a good choice for your diet. It’s so refreshing, especially in summer, but… how does it fit into a controlled diet? Read on because we’re going to answer all your questions about the relationship between watermelon and diabetes!
Is watermelon good for diabetics?

The short answer is: yes, watermelon is good for people with diabetes, but in moderation. Although watermelon is known for being high in water content and low in calories, it also contains natural sugars, something that anyone with diabetes should bear in mind.
The key here lies in the glycaemic index (GI), which measures how foods affect blood glucose levels. Watermelon has a GI of 72, which places it in the category of high-glycaemic-index foods. This means that its sugar is absorbed quickly, which can cause spikes in blood glucose levels if not consumed appropriately.
But wait! Before you give up watermelon for good, there’s something else you should know. The glycaemic index alone isn’t the whole story; we also need to look at the glycaemic load (GL), which takes portion size into account. Watermelon’s GL is relatively low, meaning that if you eat it in small portions, it won’t have a significant impact on your blood sugar. So all is not lost for watermelon lovers!
How much watermelon can a diabetic eat?
This is where moderation comes into play. People with diabetes can enjoy watermelon as long as they eat it in moderation. vIdeally, you should eat around **120–150 grams** of watermelon per serving, which is roughly equivalent to one cup of watermelon cubes.
That serving size will provide you with approximately 12 grams of carbohydrates, which is an advisable amount in a diabetic eating plan. Also, let’s not forget that watermelon is mostly water, so it doesn’t provide many calories (only 46 calories per cup). This makes it a refreshing and light snack, perfect for when you need something sweet without going overboard.
Top tip: If you’re diabetic and love watermelon, it’s best to eat it with protein or healthy fats, such as a handful of almonds or a slice of cheese. This will help slow down the absorption of sugar in your body and keep your blood sugar levels stable.
What other fruits can a diabetic eat?
Now that you know watermelon is an option – albeit in moderation – you may be wondering which other fruits are safe for people with diabetes. The good news is that lots of fruits are allowed! Fresh fruits are rich in fibre, vitamins and antioxidants, which are beneficial for general health, including for people with diabetes.
Watermelon and diabetes: balance is key
Although watermelon can form part of a diabetic’s diet, it is always important to remember that balance is key. The key to good diabetes management isn’t to avoid fruit altogether, but to eat it sensibly. Moderate portion sizes, a balanced diet and regular monitoring of blood glucose levels are essential.
So, if you are diabetic and fancy a delicious watermelon, go ahead and enjoy it, but always remember to do so in moderation and with other foods that help you balance your blood sugar. And if you’re looking for more options, there’s a wide variety of healthy and safe fruits you can enjoy too!