What is Fructose Intolerance?

What is fructose intolerance or sensitivity?

There are two kinds of Fructose Intolerances.

The first is Mild Fructose Intolerance or Fructose Malabsorption and it is experienced in about 1 in 3 people. The other is Hereditary Fructose Intolerance which can be dangerous if left undiagnosed. They both lead to malabsorption illnesses, but can be easily treated with a Fructose-free Diet.

What is Hereditary fructose intolerance?

People with hereditary fructose intolerance, a rare genetic disorder, lack an enzyme that breaks down fructose. This serious disorder, which is usually diagnosed at a young age, can lead to liver and kidney damage.

What is Fructose malabsorption?

People with fructose malabsorption have difficulty digesting fructose. This is a less serious disorder because it doesn’t result in liver or kidney damage. But it can cause abdominal pain, gas, bloating, diarrhea…

What are the symptoms of fructose intolerance?

  • Gastrointestinal distress: flatulence, bloating, diarrhea
  • Tiredness, Chronic fatigue
  • Malabsorption issues: low iron (anaemia), osteoporosis or other nutrient deficiency
  • Sugar cravings
  • Poor skin, nails and hair
  • Irritable Bowel Syndrome
  • For Fructose Intolerance (the more common type) there is clinical evidence associating it with mood disturbances and depression

The symptoms of both types of Fructose intolerance are very similar to Lactose Intolerance so they can be mistaken for one another. You cannot diagnose your food intolerance from symptoms alone.

Which food to avoid?

The list can go on and on. However, if you are suffering from Hereditary Fructose Intolerance you should consult your doctor for details. In other cases, you can avoid food items below to heal your body. After avoiding these items for a few months you can slowly reintroduce some items back in moderation to figure your limits.

Vegetables to Avoid:

Sweet potatoes
Winter squash

Recommended Fruits: only once or twice a week

Avocado (1)
Cranberries (¼ – ½ cup)
Lemons (1)
Limes (1)
Rhubarb (¼ – ½ cup)

Try after 2 months of low fructose diet (1/4 – 1/2 cup)

Orange sections

Fruits to Avoid:

Other fruit
Fruit juice or drinks
Other jam and jelly

Milk Products to Avoid:

Chocolate milk, sweetened with high fructose corn syrup
Sweetened condensed milk, sweetened with high fructose corn syrup
Yogurt; fruited, sweetened with high fructose corn syrup or Splenda
Ice Cream made with corn syrup

Miscellaneous to Avoid:

Vinegar, apple cider
Tomato based sauces; catsup, salsa, pizza, spaghetti
Soy sauce

Spices to Limit or Avoid:

Dill weed
Garlic; fresh, powder, salt
Hot chili pepper
Onion; fresh, powder, salt

Proteins to Avoid:

Legume products other than these: Chick peas (garbanzo beans) ¼ – ½ cup,
Lentils ¼ cup, Lima beans ¼ cup, Mung beans, ¼ cup
Meat; processed with honey or brown sugar, commercially breaded
Nuts other than pistachios

Beverages to Avoid:

Carbonated beverages, sweetened; diet, citrus based
Chocolate milk, sweetened
Juice; cider, fruit drinks, vegetable
Powdered drinks, sweetened
Wine, sweet

Sugars to Avoid:

Agave syrup
Brown sugar
High fructose corn syrup
Invert sugar
Maple syrup
Palm sugar
Sugar substitutes
Splenda (Sucralose)

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