Does Watermelon Raise Blood Pressure During Pregnancy?

By Tahani Elghazaly
Published May 18, 2026

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As summer approaches, many pregnant women hear quick food warnings online, including one common question: can watermelon raise blood pressure during pregnancy? In most cases, the answer is no. Watermelon is not generally considered a food that raises blood pressure, because it is rich in water and very low in sodium. It can be part of a balanced summer diet when eaten in moderation.

The real issue is not watermelon itself, but how any symptom during pregnancy is handled. If a pregnant woman has diagnosed high blood pressure, or repeated readings of 140/90 or higher, she should not rely on general food advice. High blood pressure during pregnancy needs medical follow-up. ACOG says pregnant women should contact their ob-gyn if symptoms such as severe headache, vision changes, upper abdominal pain, sudden swelling, or shortness of breath develop, especially in the second half of pregnancy.

Watermelon is a hydrating fruit and may feel refreshing in hot weather. It also contains nutrients such as vitamin C and antioxidants. But it is not a treatment for high blood pressure, and it should never replace water, medical care, or prescribed medication.

The point that deserves more attention is blood sugar. Watermelon contains natural sugars, and large portions may not be ideal for some pregnant women, especially those with gestational diabetes or elevated blood sugar. The CDC notes that managing gestational diabetes includes paying attention to food choices and blood sugar levels to support a healthy pregnancy.

For most pregnant women, a moderate serving, such as one cup or a medium slice, is usually a reasonable choice unless a doctor or dietitian has advised otherwise. For those monitoring blood sugar, eating watermelon as part of a balanced snack, for example with plain yogurt or a small portion of nuts, may be better than eating a large amount on its own.

The bottom line is simple: watermelon usually does not raise blood pressure during pregnancy. But if there is high blood pressure, gestational diabetes, sudden swelling, severe headache, vision changes, or any unusual symptom, the safest answer is medical advice, not social media advice.