Of course, the predecessor of french fries makes the first in our list. Although it does contain some vitamin C, iron and potassium, it is predominantly full of starch, a form of carbohydrates which diabetics should be avoiding. 1 medium size potato equates to having 3/4 bowl of rice which around 21 grams of carbohydrates.
Tip: When having potatoes, do not eat any other carbs. Try to eat the skin as it contains healthy soluable and insoluable fiber.
Commonly used as a main vegetable in salads, icebergs are the least nutritious lettuce of all. Although not entirely a bad vegetable, it does not provide as much nutrients as other lettuce do in a single serving. For instance, a serving of iceberg lettuce provides 5 percent the amount of vitamin A in a serving of romaine lettuce!
Tip: When choosing a big leafy vegetable, go with a darker green or colour like romaine lettuce or radicchio.