The beefsteak tomato is one of the largest tomato varieties with a meaty and firm flesh. Its size, juicy taste, and rich nutrient content make it a preferred culinary choice. Tomatoes are a good source of fiber, water and they are only a few calories. High in vitamin C, potassium, vitamin K1, important for blood clotting and bone health, and folate vitamin B9 supports tissue growth and cell function.