Kidney problems are not the only contraindication. You should also be careful with watermelon:
| Group | Reason for risk |
|---|---|
| People with diabetes | Watermelon has a high glycemic index: its sugar is absorbed quickly and sharply raises glucose. It is allowed only in strictly limited quantities, calculated in bread units. |
| People with intestinal problems | In case of irritable bowel syndrome, colitis or acute pancreatitis, watermelon can cause bloating, gas and diarrhea due to its high fiber and fructose content. |
| People with large kidney stones | The diuretic effect can dislodge stones and provoke painful renal colic. |
Benefits and risks: a quick overview
The benefits (for healthy people)
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Ideal hydration – an excellent way to restore fluids in the heat.
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Source of lycopene – a powerful antioxidant that gives it its red color; reduces the risk of some cancers and protects the heart.
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Vitamins C and A – support immunity, vision, and skin.
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Vascular support – contains citrulline, which improves blood flow and can lower blood pressure.
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Low calorie – a suitable dessert for weight control.
The main risks
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Load on diseased kidneys – excess fluid and potassium.
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A sharp spike in blood sugar – a problem for diabetics.
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Intestinal complaints – bloating and diarrhea with a sensitive gastrointestinal tract.
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Risk of nitrates – especially with “early” watermelons out of season (late August – September is the safest period).
