Short Answer: It is generally safe/unsafe to eat cucumber and watermelon together or one after another. Because cucumbers and watermelons are both cooling foods that can help balance the pitta dosha in the summer season, but they should be consumed in moderation and not overripe according to science.
Cucumber and watermelon are both healthy (foods) that contain vitamins, minerals, antioxidants, and water.
Cucumber has more vitamin K and water content than watermelon3, while watermelon has more vitamin C and lycopene than cucumber.
According to Ayurveda, cucumbers and watermelons are both cooling foods that can help balance the pitta dosha in the summer season.
However, according to science, cucumbers and watermelons can be safely combined as a refreshing and hydrating snack or dessert, as long as they are consumed in moderation and not overripe.
As a nutritionist, my advice is to try first.
If after eating cucumber and watermelon together can cause digestive discomfort, then stop combining them.
And if you can tolerate, then continue.
However, you should be mindful of the quality and quantity of cucumber and watermelon you consume.
Because too much watermelon can cause water intoxication or hyponatremia, a condition where the sodium levels in the blood become too low.
You can store cucumber and watermelon in the refrigerator or freezer to prevent spoilage and maintain their freshness.
Do not store them in the direct sunlight or high humidity, as this can cause them to rot faster.
Finally, remember, cucumber and watermelon are both delicious and nutritious foods that can be enjoyed in various ways.
You can slice them raw, blend them into a smoothie, add them to a salad, or make a fruit salad with other seasonal fruits.