3. Iceberg lettuce
Usually, it’s the dark green, leafy varieties of lettuce that are recognize for their nutritional value; however, when it comes to vitamin A, iceberg lettuce should get some recognition. A cup of shredded lettuce will give you about 7 percent of the daily recommended intake of vitamin A, which may not be a lot, but it certainly is something. Mix it together with carrots and other foods that are high in vitamin A and you’ll definitely prevent a vitamin A deficiency. Additionally, iceberg lettuce is a great source of other essential nutrients, such as vitamin B6, iron, potassium, vitamin K, thiamin, folate and manganese.