Tomato

Raw ripe tomato fruits supply lycopene (potent carotenoid antioxidant), vitamin C, vitamin K, potassium and dietary fibre. Clinical studies and EFSA opinions confirm the nutritional relevance of these nutrients for oxidative stress, immune function and cardiovascular health. Lycopene is better absorbed from heated tomato products (paste, sauce) than from raw fruit.

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Tomato paste, puree and cooked sauces (passata) are culinary preparations in which lycopene bioavailability is substantially improved by heat processing and co-presence of fat (olive oil). Foundation of Mediterranean cuisine (sofrito, sugo) — these cooked preparations are nutritionally superior to raw tomato juice in terms of lycopene uptake.

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Regular tomato consumption is associated with reduced cardiovascular disease risk in epidemiological studies, attributed to the combined effect of lycopene, potassium, folate and phenolic acids. The EFSA panel confirms the evidence chain for lycopene antioxidant activity; however, direct clinical endpoints remain insufficient per EFSA 2011 for an approved product-level health claim.

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In folk medicine, tomato slices were applied topically to sunburn and minor skin irritations — the mild acidity (citric and malic acid) and lycopene are considered cooling and soothing. This folk application is not clinically validated; however, the photoprotective effect of oral lycopene intake is the subject of clinical investigation.

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In European folk medicine, tomatoes (fresh juice, raw fruit) were used for urinary complaints and considered mildly diuretic food. Their high water content (~95 %) and potassium content support renal flushing. Specific clinical evidence is lacking; the dietary use of potassium-rich vegetables is nutritionally recognised.

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Dried tomatoes (oven-dried, sott'olio) are a traditional preservation product of southern Italian and Spanish cuisine. Water removal concentrates lycopene, glutamic acid (umami), sugars and minerals strongly — dried tomatoes have approximately 10-fold higher lycopene content per unit weight than fresh fruit.

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Tomato juice and freshly pressed tomato products (gazpacho, cold soups) are a traditional vegetable intake form in the Mediterranean diet. Tomato juice contains significant amounts of lycopene, vitamin C, potassium and organic acids, and is in this context part of WHO-recommended Mediterranean dietary patterns.

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