Eat your vegetables. You’ve probably heard that your entire life, and if you’re like most Americans, you still have trouble eating as many “greens” as you’re supposed to. With that in mind, it may be hard to imagine eating so much of a vegetable, like lettuce, that you worry about the equivalent of a lettuce overdose. However, as always, too much of a good thing can be bad. Though there are different types of lettuce, their basic composition is the same and if consumed in excess, they can exacerbate certain health conditions.

  Advertisement
 
Types of Lettuce

There are six main types of lettuce grown for human consumption: butterhead, iceberg, romaine, looseleaf, summer crisp and Chinese lettuce. All lettuce is almost entirely made of water, has few calories and is a source of vitamin A and beta-carotene, which is a source of vitamin A itself. Lettuce also has other vitamins and minerals, but these are in relatively small amounts. Lettuce has been cultivated for centuries, back to the ancient Egyptians.

  Advertisement
 
  Video of the Day
  
Possible Side Effects of Lettuce

Because lettuce is mostly made of water, you would have to eat a lot of it for it to have any negative effect on your body. Because lettuce has beta-carotene, it is possible to consume so much of it that you acquire carotenodermia. Carotenodermia manifests as a yellowish tint to the skin but goes away quickly if you lower the amount of beta-carotene you consume.

  Advertisement
 
Eating a Lot of Lettuce Quickly

Competitive eaters reportedly eat massive amounts of lettuce to prepare for their events. Because lettuce is low in fat, sugar and calories, these individuals use it as a “healthy” means to expand their stomach over time. Once the lettuce has done its job, the competitive eater is ready to fill his newly enlarged stomach for the sport.

  Advertisement
 
Let Us Eat Lettuce

For the vast majority of people, lettuce is healthy and can be consumed as part of a well-balanced diet. A large salad will leave you full, but it takes a significant amount of lettuce, eaten over time, to offer any risk to the average person. If you have problems digesting lettuce or have a condition that you think eating lettuce may affect, consult your doctor.

  Advertisement
 
  Advertisement
  
  references & resources
  
      United States Department of Agriculture: Nutrient Data Laboratory
    
      DrZ.org: Ask Dr. Z: Digestive Problems
    
      Vitamin Basics; Beta-carotene; 2009
    
      Major League Eating
       




  references & resources
  
      United States Department of Agriculture: Nutrient Data Laboratory
    
      DrZ.org: Ask Dr. Z: Digestive Problems
    
      Vitamin Basics; Beta-carotene; 2009
    
      Major League Eating
    




      United States Department of Agriculture: Nutrient Data Laboratory
    
      DrZ.org: Ask Dr. Z: Digestive Problems
    
      Vitamin Basics; Beta-carotene; 2009
    
      Major League Eating