Tomatoes are the major dietary source of the antioxidant lycopene, which has been linked to many health benefits, including reduced risk of heart disease and cancer.
They are also a great source of vitamin C, potassium, folate, and vitamin K.
Usually red when mature, tomatoes can also come in a variety of colors, including yellow, orange, green, and purple. What’s more, many subspecies of tomatoes exist with different shapes and flavor.
The water content of tomatoes is around 95%. The other 5% consists mainly of carbohydrates and fiber.
Here are the nutrients in a small (100-gram) raw tomato (1Trusted Source):
Protein: 0.9 grams
Carbs: 3.9 grams
Sugar: 2.6 grams
Fiber: 1.2 grams
Fat: 0.2 grams
Carbs comprise 4% of raw tomatoes, which amounts to fewer than 5 grams of carbs for a medium specimen (123 grams).
Simple sugars, such as glucose and fructose, make up almost 70% of the carb content.
Tomatoes are a good source of fiber, providing about 1.5 grams per average-sized tomato.
Most of the fibers (87%) in tomatoes are insoluble, in the form of hemicellulose, cellulose, and lignin .
Tomatoes are a good source of several vitamins and minerals:
This vitamin is an essential nutrient and antioxidant. One medium-sized tomato can provide about 28% of the Reference Daily Intake (RDI).
Potassium. An essential mineral, potassium is beneficial for blood pressure control and heart disease prevention
Vitamin K1. Also known as phylloquinone, vitamin K is important for blood clotting and bone health
Folate (vitamin B9). One of the B vitamins, folate is important for normal tissue growth and cell function. It’s particularly important for pregnant women
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