N is for...
Net Carbs:
With new trending low carb diets like
the Keto Diet, net carbs are becoming a hot topic. What are net carbs? Net carbs are sometimes referred to as digestible or impact
carbs. These carbs are the carbs excluded from fiber. When you eat a
carb-containing food, most of the carbs are broken down into individual sugar
units by enzymes produced in your small intestine. Your body can only absorb
individual sugar units. However, some carbs can't be broken down into
individual sugars, whereas others are only partially broken down and absorbed.
These include fiber and sugar alcohols.
Fiber is a unique
form of carbs, unlike starch and sugar, fiber isn't absorbed in your small
intestine. This is because the links between sugar units can't be broken down
by the enzymes in your digestive tract. Therefore, fiber passes directly into
the colon.
There are two broad categories of
fiber: insoluble and soluble. Insoluble fiber does not dissolve in water. This
type of fiber prevents constipation, provides no calories and has no effect on
blood sugar or insulin levels. Soluble
fiber dissolves in water and forms a gel that slows down food's movement
through your system and can help make you feel full. Fiber recommendations are:
at least 30 grams daily for men and at least 25 grams daily for women.
Whole foods contain naturally
occurring fiber. Using this simple formula, you can get a pretty accurate idea
of the net carbs in your food: total carbs minus fiber equals net carbs. For
example, a medium avocado contains 17.1 grams of total carbs, 13.5 grams of
which is fiber. So 17.1 grams of total carbs – 13.5 grams of fiber = 3.6 grams
of net carbs.
Next time you’re eating something,
take a look at the label and calculate how many net carbs are in it. If you
choose to eat a low carb diet make sure you consult your doctor first.
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