Carb Blockers – Do They Work?

Carbs are just about done enjoying their time as dieters’ biggest enemy. Whole grains have taken center stage as a great carbohydrate source that provides you with fiber, antioxidants, protein, and many vitamins and minerals.

But though refined carbs like pasta, white rice and French bread do lack any real nutritional benefit, we are continued to be drawn to them. New products called carb blockers have recently hit the shelves. These supplements, patches and other diet aids claim to stop your body from metabolizing carbohydrates into your body as fat. But how do these claim to work, and is this just a hoax? 

Do They Really Block Carbs?

Carb blockers claim to work by utilizing a substance that doesn’t let carbs be absorbed by the body. Many of these products contain a substance called Phaseolus vulgaris, which is found in white kidney beans. They also contain trace amounts of chromium, magnesium, and other supplements.

Supposedly, this substance stops the pancreas from producing an enzyme called alpha-amylase which allows carbohydrates to be broken down into simple sugars that are easily digested by our bodies.

Unfortunately, there have been very few studies to test this theory out, and the studies currently on the market conclude that the Phaseolus vulgaris substance works slightly better than a placebo, which isn’t quite the miracle we’ve been hoping for (see linked study at bottom of the page). 

Should I Try A Carb Blocker?

The carb-blocking products on the market are usually inexpensive and probably not harmful, but since they are not regulated by the FDA because they’re dietary supplements, they may not be safe. Even if the pill works for short-term weight loss, a better approach to weight loss is limiting the amount of refined carbohydrates and increasing lean protein, vegetables, and whole grains.  

Be Safe!

Remember to talk to your doctor before embarking on a new weight loss plan or exercise regime. A carb blocker could interfere with other prescriptions or vitamins you’re currently taking, so before you decide to try one, ask your doctor if it’s safe for you. Read the label of the product, take it as advised, and remember that the benefits of eating well and exercising often last a lifetime. 

*Study of Carbohydrate Blockers Featured in the International Journal of Medical Sciences: http://www.medsci.org/v04p0045.htm