Dr. Becky Maes - Is It Bad For You? Approved by Dr. Becky Maes

Are Uncrustables Bad For You?

Also Known As: Smucker's Uncrustables, sealed crustless sandwich



Short answer

Uncrustables are indeed bad for you due to the high levels of high fructose corn syrup, hydrogenated oils, and processed bread. It is OK to have one every once in a while, but should not be considered part of one's diet.



Recommended Alternative

Long answer

Uncrustables consist of peanut butter, some sort of fruit jam, and white bread. The peanut butter consists of hydrogenated vegetable oils, sugar, and other chemicals that allow the product to be preserved. The jelly contains high in fructose corn syrup and preservatives which make this product very unhealthy. The bread also contains corn syrup and hydrogenated vegetable / soybean oils. Most of the ingredients in the peanut butter and jelly are chemically processed which strips the nutrients, leaving a completely non-nutritious product.

Do not be tricked with the Uncrustables products that are on whole wheat bread with reduced sugar. Although this may be true, the product still contains hydrogenated oils, azodicarbonamide, corn syrup, and mono / diglycerides that are not good for one's diet. For example, azodicarbonamide can cause allergic and respiratory reactions. The trans fat in the Uncrustables promotes obesity, high cholesterol levels, risk of clogged arteries, and inflammation. Mono and diglycerides are known to increase the risk of heart disease, stroke, and diabetes.

All of these ingredients are only there to improve and extend the shelf life of the products, not to provide you with a nutrient rich meal. It is definitely more beneficial to one's diet to purchase fresher and more organic products. Overall, Uncrustables are deemed non-nutritious because the ingredients are chemically altered (stripping the nutrients) and contain unhealthy sources of sugars and fats.

Possible short-term side effects

  • fatigue
  • increased blood sugar
  • possible allergic reaction
  • respiratory reactions

Possible long-term side effects

  • weight gain
  • diabetes
  • increased cholesterol
  • stroke
  • heart disease
  • inflammation

Ingredients to be aware of


  • convenient
  • ready-to-eat

Healthier alternatives

  • homemade pb&j

Our Wellness Pick (what is this?)

Nature's Path Toaster Pastries

  • Organic ingredients
  • Rich maple flavor
  • Non-GMO
  • Convenient snack
  • Preservative-free
Learn More!

Thank you for your feedback!

Written by Desmond Richard
Published on: 12-28-2015
Last updated: 12-01-2023

Thank you for your feedback!

Written by Desmond Richard
Published on: 12-28-2015
Last updated: 12-01-2023

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