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Sodium Content of Fresh Tomatoes

By Sandi Busch

Without sodium your nerves and muscles would not work. Sodium also regulates the amount of water in your body, which is essential for your health. When you consume too much sodium, water stays in your body and blood pressure increases. Eating plenty of fresh vegetables, including tomatoes, is a great way to reduce your sodium consumption.

Sodium in Tomatoes

One large, red, raw tomato, which equals about 1 cup of chopped fresh tomato, only has 9 milligrams of sodium. For foods to qualify as sodium-free, they must have less than 5 milligrams of sodium in one serving, according to Colorado State University Extension. While a whole tomato just misses being sodium free, one medium-sized slice of red tomato qualifies because it only contains 1 milligram of sodium. Yellow and green tomatoes have a little more, but not a significant amount. One medium slice of a green tomato has 3 milligrams of sodium, and a slice of a raw, yellow tomato has 5 milligrams.

Sodium Recommendations

Try keeping track of your sodium intake for a few days. If you're like most Americans, you probably get more than you realize. In September 2012, the "American Journal of Clinical Nutrition" reported that 90 percent of Americans consume more than the upper tolerable intake. The recommended daily intake for sodium is 1,500 milligrams, according to the Institute of Medicine. The upper tolerable intake, which is the maximum amount healthy adults should eat in one day, is 2,300 milligrams. The upper level is based on limiting the risk of high blood pressure, which means it may be lower than 2,300 milligrams if you have hypertension, diabetes or kidney disease.

Other Tomato Products

If you associate tomatoes with high sodium, it’s probably due to tomato-based products, because salt is added during processing. One cup of tomato soup has 471 milligrams, while the same portion of tomato juice contains 654 milligrams of sodium. One cup of canned tomato sauce supplies almost an entire day's recommended intake. The extremely high amount of sodium you'll get from just 1 cup of different tomato products illustrates the benefit of using fresh tomatoes to make your own sauces or buying low-sodium brands.

Add Tomatoes to Reduce Sodium

The Centers for Disease Control and Prevention notes that high blood pressure is a risk factor for heart disease and stroke, which are the first and third leading causes of death in America. Finding ways to add tomatoes to your diet is a good way to add some filling bulk, flavor and nutrients, while also reducing sodium. Go beyond putting slices of tomato on sandwiches and in salads. Use them to replace ketchup. Add them to brown rice or make a tomato and tofu sandwich. Tomatoes, garlic and a drizzle of olive oil are great on plain, cooked pasta. Stuff whole tomatoes with a mixture of quinoa, mushrooms, onions and basil.

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