She never dreamed that her healthy protein bar was loaded with at least 4 different forms of the isolated sugar alcohols. So, hidden in your healthy food choices may be alternative sweeteners causing stomach cramping, diarrhea, gas, bloating, and other intestinal problems. Onions . Learn how to prevent flatulence and still enjoy your morning smoothie. If you find that this happens to you after eating just a small amount, it could be the case that you have a wheat intolerance or gluten intolerance, which causes stress on the gut and digestive system. The flavours aren’t t… Isomalto-Oligosaccharides (IMO) Photo by Lila Seeley. Jlopez1990 says: They do the trick when you’re in a pinch. Keeping snacks to about 250 calories or less can help to prevent weight gain and keep your metabolism revved up. The bars are often hard (maybe just the boxes I was getting). For many, these protein sources are known to cause digestion complications resulting in bloating, gas and constipation. And, this particular protein bar was not labeled sugar-free. I tried a new type of protein bars today (I had two. 37 reviews for Kirkland Signature Protein Bar. But I find them to be glorified chocolate bars with a whey-like taste. No thank you Quest Bar. Eating high amounts of fiber not only has the potential to cause digestive stress, bloating and gas, but it may also lead to nutrient malabsorption, hence the need to curtail your intake of high-fiber protein bars. No Idle Snack Bar Eating . Sadly, Kirkland makes the same mistake that many protein bar companies do in that they overload on the chocolate. Even if the total grams of fiber are the same in both, it doesn’t mean the body digests each type the same way. Kirkland Brand $1.23/each ($49.26 for a box of 40 bars from Costco’s website) The protein bars come in an equal number of 2 flavors: chocolate chip cookie dough and chocolate brownie. If you need a bar that's gluten-free, vegan, or nut-free, make sure you read ingredients carefully. However, some might find that bread causes excessive gas and painful bloating. I'm having massing gas cramps. The fiber in a fresh carrot may not be the same as the fiber in your processed protein bar. A good protein bar should have at least 3 grams of fiber, according to dietitian Kait Fortunato, but many contain much more than this. Onions contain high levels of fructose, a natural sugar present in many fruits and vegetables. Consuming a milk-based product could be causing an increase in protein shake gas. Yes, Quest Bar makes an effort to point out that this ingredient is derived from plant sources. Make sure you eat them for a reason.