High blood pressure, or hypertension, affects a large number of adults worldwide and is a major risk factor for cardiovascular disease1 . Recent studies have shown that eating tomatoes regularly may significantly reduce the risk of developing hypertension and help manage blood pressure in those already affected2 . Consuming more than 110 grams of tomatoes daily, roughly equivalent to one large tomato, has been linked to a 36% lower risk of high blood pressure in people without hypertension3 .
Tomatoes and Hypertension Risk Reduction
Hypertension prevalence increases with age, making prevention and management critical, especially in older adults4 . The PREDIMED trial, which included over 7,000 older adults at high cardiovascular risk, found that higher tomato consumption was associated with lower diastolic blood pressure and a reduced risk of hypertension over a three-year period5 . Similarly, a large prospective study in China involving more than 11,000 adults reported a J-shaped relationship between tomato intake and new-onset hypertension, with moderate consumption linked to the lowest risk6 .
People who ate the most tomatoes or tomato-based products daily lowered their risk of developing high blood pressure by more than one-third compared to those who consumed the least7 . This protective effect was particularly notable in individuals with mild hypertension (stage 1), where moderate tomato consumption was associated with reductions in both systolic and diastolic blood pressure5 8. Diastolic blood pressure measures the pressure in arteries when the heart is at rest, and lowering it can reduce cardiovascular strain5 .
| Tomato Consumption Group | Serving Size (grams) | Hypertension Risk Change |
|---|---|---|
| Lowest | <44 | Reference |
| Intermediate | 44–82 | Slightly lower risk |
| Upper-intermediate | 82–110 | Moderate risk reduction |
| Highest | >110 | 36% lower risk |
| Sources: 6 | ||
Tomatoes contain bioactive compounds such as lycopene and potassium that likely contribute to their blood pressure-lowering effects. Lycopene reduces the activity and gene expression of the angiotensin-converting enzyme, which prevents the synthesis of angiotensin II, a molecule that narrows blood vessels and raises blood pressure7 . Lycopene also promotes the generation of nitric oxide in the endothelium (the cells lining blood vessels), improving blood flow and lowering blood pressure7 . Potassium helps balance sodium levels in the body, regulates fluid balance, and supports blood vessel relaxation7 .
For older adults with long-standing hypertension and multiple cardiovascular risk factors, the blood pressure improvements from tomato consumption may be less pronounced, and more intensive management may be required due to accumulated vascular damage4 5.
“Lycopene, the most abundant carotenoid in tomatoes, not only reduces angiotensin-converting enzyme activity and its gene expression, thereby preventing the synthesis of angiotensin II, but also promotes the generation of nitric oxide in the endothelium, which helps lower blood pressure and improve blood flow.”
— Rosa María Lamuela-Raventós, University of Barcelona7
Heart Health Benefits of Tomatoes
Tomatoes are rich in potassium, a mineral essential for blood pressure regulation. Potassium promotes vasodilation (widening of blood vessels) and enhances sodium excretion through the kidneys, both of which help lower blood pressure9 . The American Heart Association recommends increasing potassium intake through foods like tomatoes as a key lifestyle modification to reduce hypertension risk9 .
Lycopene, the carotenoid responsible for tomatoes’ bright red color, has been extensively studied for its cardiovascular protective effects. It exhibits antioxidant and anti-inflammatory properties that reduce oxidative stress and inflammation in cardiovascular tissues10 11. Lycopene also has antiplatelet effects, which may help prevent blood clots and improve overall heart health9 .
“Tomatoes should not be considered a 'magic food' for health problems but rather as an important component of a diverse and healthy diet.”
— Rosa María Lamuela-Raventós, University of Barcelona7
The exact mechanisms by which tomatoes lower blood pressure are still being investigated, but both potassium and lycopene appear to play important roles9 12. Cooking tomatoes increases the bioavailability of lycopene and other antioxidants, making cooked tomato products potentially more beneficial than raw tomatoes7 .
Additional cardioprotective effects of tomatoes include the reduction of low-density lipoprotein (LDL) cholesterol and homocysteine levels, both of which are risk factors for cardiovascular disease13 .
- Potassium helps counteract the effects of sodium and relaxes blood vessel walls, lowering blood pressure14 .
- Lycopene reduces oxidative stress and inflammation in blood vessels10 .
- Antioxidants in tomatoes may improve endothelial function and blood flow9 .
- Cooked tomato products enhance lycopene absorption compared to fresh tomatoes7 .
- Tomatoes may also reduce LDL cholesterol and homocysteine, supporting heart health13 .
“The cardioprotective mechanisms involved in blood pressure reduction may be partly attributed to the presence of lycopene in tomatoes.”
— Rosa María Lamuela-Raventós, University of Barcelona7
Tomatoes in a Heart-Healthy Diet
Tomatoes are a practical and affordable source of nutrients that support cardiovascular health and blood pressure control15 . They are a key component of dietary patterns such as the Mediterranean and DASH (Dietary Approaches to Stop Hypertension) diets, which emphasize fruits, vegetables, whole grains, and healthy fats and have strong evidence for lowering blood pressure and reducing cardiovascular risk16 17.
Increasing potassium intake through a variety of fruits and vegetables, including tomatoes, is a cornerstone strategy to manage hypertension16 . Potassium helps the body excrete excess sodium and relaxes blood vessels, contributing to lower blood pressure14 12. Dietary guidelines consistently recommend reducing sodium intake while increasing potassium consumption to improve blood pressure control17 .
💡 Did You Know?
Eating tomatoes regularly has benefits for the prevention and control of high blood pressure. Consuming more than 110 grams of tomatoes daily reduces the risk of hypertension by 36% in people without high blood pressure3 .
Lycopene-rich tomato products align with these heart-healthy diets by providing antioxidant and anti-inflammatory benefits that complement other dietary factors5 18. Long-term adherence to such diets, combined with regular physical activity, is essential for effective hypertension prevention and management9 .
Other potassium-rich foods that support blood pressure regulation include citrus fruits, bananas, potatoes, and leafy greens14 . Consuming tomatoes along with healthy fats like olive oil or avocado can enhance the absorption of lycopene and other antioxidants19 .
- Mediterranean and DASH diets emphasize fruits and vegetables, including tomatoes, for heart health16 17.
- Potassium-rich foods help lower blood pressure by promoting sodium excretion and vasodilation14 .
- Lycopene in tomatoes provides antioxidant and anti-inflammatory effects10 .
- Combining tomatoes with healthy fats improves antioxidant absorption19 .
- Sustainable dietary changes and physical activity are key for long-term blood pressure control9 .
