The OPTIFAST VLCD product range contains variable amounts of fructose therefore, for individuals with fructose malabsorption, it can be a matter of trial and error to work out which products are better tolerated.

It is important to note that glucose enhances the absorption of fructose by the principle that one molecule of glucose enables absorption of one molecule of fructose. So, for example, fructose from table sugar (50% fructose, 50% glucose) is generally well absorbed even in persons with fructose malabsorption. Therefore, the greater the glucose-to-fructose ratio in the food, the easier the fructose will be absorbed.

The table below lists both the Fructose content and the Glucose:Fructose ratio of the OPTIFAST VLCD products. Based on this, all varieties of soups have the lowest fructose levels. In addition, the Berry Crunch and Cappuccino Bars tend to have a favourable glucose: fructose ratio also making them good choices.

SHAKES
  • Product

  • Fructose per serve (g)

  • Fructose per 100g (g)

  • Glucose:Fructose Ratio

  • OPTIFAST VLCD Chocolate Shake

  • 4.0

  • 7.4

  • 1:18.5

  • OPTIFAST VLCD Vanilla Shake

  • 3.4

  • 6.3

  • 1:21

  • OPTIFAST VLCD Strawberry Shake

  • 3.4

  • 6.3

  • 1:21

BARS
  • Product

  • Fructose per serve (g)

  • Fructose per 100g (g)

  • Glucose:Fructose Ratio

  • OPTIFAST VLCD Berry Crunch Bar

  • 9.4

  • 15.7

  • 1:2.2

  • OPTIFAST VLCD Cappuccino Bar

  • 8.1

  • 13.5

  • 1:1.8

SOUPS
  • Product

  • Fructose per serve (g)

  • Fructose per 100g (g)

  • Glucose:Fructose Ratio

  • OPTIFAST VLCD Chicken Soup

  • 0.09

  • 0.18

  • 1:0.15

  • OPTIFAST VLCD Tomato Soup

  • 0

  • 0

  • 0.6:0

DESSERTS
  • Product

  • Fructose per serve (g)

  • Fructose per 100g (g)

  • Glucose:Fructose Ratio

  • OPTIFAST VLCD Chocolate Dessert

  • 4.6

  • 10

  • 1:4.5

  • OPTIFAST VLCD Lemon Crème Dessert

  • 4.6

  • 10

  • 1:9

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