Lactase and Gas: What Users Say

• Sco...
• February 6, 2017

Lactase for Lactose Intolerance "After not having many issues with any dairy other than ice cream, I decided to try Lactaid in order to be able to enjoy the delicious treat of vanilla ice cream once more...but I regret everything now. Not only did it not do Jack squat, but my symptoms of lactose intolerance are even worse now. Usually, I can get away with just a little bit of gas, and I'm fine, but now I have nausea, diarrhea, gas, and bloating. Worst decision ever!!! This product deserves negative stars!!!"

• Ann...
• Taken for less than 1 month
• October 19, 2018

For Lactose Intolerance "I have a pretty mild lactose intolerance usually. A big dairy meal can result in an upset stomach, cramping, and gas. I tried a lactase enzyme to hopefully relieve my minor symptoms. Upon taking the pill, my symptoms seriously escalated! I’ve tried it twice now, and both resulted in a terrible upset stomach, diarrhea, and vomiting. Googling the enzyme reveals no side effects, but after looking through these reviews, I’d recommend using it with caution!"

• Anonymous
• Taken for 1 to 6 months
• May 13, 2019

Lactase for Lactose Intolerance "I have been using Lactaid milk for a while for my morning cup of coffee and still had issues with bloating and gas, so I recently decided to use the Lactaid Fast Act. I noticed that there were days when my stomach would hurt an hour or two after the pill, but nothing too insanely bad. But today, I only drank my coffee and one of the pills, and three hours later at work, I was in a cold sweat and puking my life away. I hate leaving early, so it was super embarrassing, and when I got home, I felt the same stomach pain I usually get from the Lactaid pill, and additionally, I started having really bad diarrhea. This pill was supposed to make me more comfortable, but I almost puked all over my coworkers and pooped to within an inch of my life at home. I'm hesitant to ever take these again."

• Nev...
• March 6, 2021

For Lactose Intolerance "Do not take this stuff. 1 pill, horrible gas pain, vomiting, diarrhea. I read the other reviewers, exactly my experience. I am now laying in bed, after 3 hours of vomiting and diarrhea. Worse I've ever been. FDA, take this off the market!!!"

• Lac...
• Taken for 5 to 10 years
• January 3, 2020

For Lactose Intolerance "I usually take the Equate brand of Lactaid (usually 2 pills depending on the amount of dairy I'm going to eat with the first bite of said dairy), and I had very little to no problems when taking it. But I bought the name brand Lactaid and did the same thing when taking the pills, yet I've been sick for 3 days with bloating, gas, and diarrhea. My rating reflects the use of the name brand Lactaid, not the Equate version."

• Ugh...
• Taken for less than 1 month
• August 20, 2020

For Lactose Intolerance "I had a problem with name brand Lactaid if I took it more than once a day. Then I read the ingredients. It contains maltitol. That gives me bloating, gut pain, and terrible gas. However, Equate has a type that doesn't taste good but has no maltitol, and it works fine. I can take it several times a day, and it doesn't bother me. Puritan's Pride also has one that you do not chew without maltitol. I know that any of the 'ol' artificial sweeteners have the effect of bloating, gut pain, and terrible gas."

• JJa...
• April 20, 2019

For Lactose Intolerance "I have lactose intolerance. I love ice cream, but it gives me diarrhea. Eating cereal in milk gives me lots of gas for about 12 hours. I tried the Kroger brand of lactase pills twice. Both times, I had incessant vomiting and diarrhea. The only reason I tried it a second time is that I thought the gastrointestinal problem must have been caused by something else. Next, I tried Lactaid while eating ice cream, thinking that another brand might produce different results. No! It was every bit as bad. Interestingly, I can drink Kroger's lactose-free milk, which contains lactase, with no symptoms. Interestingly, I can eat cheese and yogurt and not have any symptoms, which is good because I also love pizza and the convenience and nutrition of Greek yogurt. I tried Breyer's lactose-free ice cream. No vomiting, but lots of diarrhea and gas, just as though it was regular ice cream."

• Mel...
• Taken for less than 1 month
• January 9, 2022

Lactase for Lactose Intolerance "In the 20 years I’ve been with my husband, he has never vomited once. He tried Lactaid to help curb other stomach issues with dairy. Used it twice and was fine. The third time he tried them before a slice of plain quesadilla and projectile vomited all over a hotel bathroom and was ill/sore for DAYS. We thought it was food poisoning until he tried them again and same thing, needed to vomit, gas, bloating, diarrhea. Horrible, these should come with a warning."

• Ric...
• Taken for 10 years or more
• November 11, 2019

For Lactose Intolerance "Long time lactose intolerance with gas, bloating, and diarrhea. Once discovered and found Lactaid (and now Kirkland brand Lactase Fast Act), all is well."