Is Slim Fast OK for a Diabetic?

Updated July 19, 2017

Different types of diabetes require different dietary constraints. Diabetics must note the carbohydrate content of food while attempting to consume adequate protein, fat and vitamins and minerals. Slim fast is OK for diabetics as long as blood glucose levels can be maintained.


Type 1 diabetes occurs when the body does not produce insulin, and therefore is often insulin-dependent. Type 2 diabetes occurs when the body produces too little insulin or the cells do not respond to insulin. This type may or may not be dependent on insulin.

Slim Fast Nutrition Facts Insulin

Insulin-dependent diabetes requires careful monitoring of food intake and units of insulin injected. One unit insulin is required for every 15 grams of carbohydrates consumed.

Slim Fast Nutrition

The strawberry flavoured Slim Fast Optima contains 245 calories, 12 grams of protein, five grams of fat, and 38 grams of carbohydrates.


The nutrient content states that one can of Slim Fast accounts for 2 1/2 carbohydrates, 1 1/2 protein and 1/2 of a fat exchange.


While Slim Fast is fortified with many vitamins and minerals, it does not contain the same benefits achieved from fruits and vegetables, such as satiety and minimal effects on glycemic index.


If Slim Fast must be consumed consider one can to be equal to 2 1/2 Units of insulin. It will also account for 2 1/2 carbohydrate exchange. For better alternatives to Slim Fast, consider replacing with half a sandwich or beef vegetable soup and salad, which offer many nutrients with fewer carbohydrates.

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About the Author

Markee Marchini is a Registered Dietitian who has been writing freelance articles since 2009. Her work has been published on eHow and LIVESTRONG.COM, where she writes about vegetarianism, media, longevity and genetics. She holds a Master of Health Science in nutrition communication from Ryerson University.