Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties

150 Doctors Online
Doctor Image
Dr. Andrew Rynne

Family Physician

Exp 50 years

I will be looking into your question and guiding you through the process. Please write your question below.

Can external lactose enzyme supplements help in passing hydrogen breath test?

Answered by
Dr. Ramesh Kumar


Practicing since :1986

Answered : 2050 Questions

Posted on Thu, 23 Mar 2017 in Digestion and Bowels
Question: Hi,
I am scheduled for lactose intolerance test( hydrogen breath) what would happen if I would take lactase enzyme tablets before and during the test? I been diagnosed with positive lactose intolerance already. I really need to pass the test as negative.
Answered by Dr. Ramesh Kumar 31 minutes later
Brief Answer:
Most likely you will pass the test.

Detailed Answer:
Thanks for choosing HealthcareMagic for your query,

Lactase enzyme is normally produced by the body to help break down lactose.The basic problem for lactose intolerant people is that they are not producing enough of the lactase enzyme to properly digest all the lactose in milk.
Hydrogen breath test requires you to drink a liquid that contains high levels of lactose.Measure Hydrogen in your breath at regular intervals.In a Normal person very little hydrogen is detectable. However if your body doesn't digest the lactose,it will ferment in the colon,releasing hydrogen, which is not absorbed by your intestines and eventually exhaled which will show that you are lactose intolerant.
As per your question if you will take external lactase before or during test,Most likely you will pass the test.As external lactase will digest lactose in liquid;So test will be normal.
If you have any other query feel free to ask.
Above answer was peer-reviewed by : Dr. Nagamani Ng
Follow up: Dr. Ramesh Kumar 9 minutes later
If I take the lactase before the test can it it show on pre-testing as something unusual? As they take the breath test 3 times before giving the lactose.
Thank you
Answered by Dr. Ramesh Kumar 14 minutes later
Brief Answer:
Follow up answer.

Detailed Answer:
Hi again;

As i already told you breath test detects hydrogen released from undigested lactose.
Even if you have taken lactase there is no lactose to break down,So it will not do anything.
Test is designed to detect hydrogen released from undigested lactose,It can't detect lactase.
Above answer was peer-reviewed by : Dr. Nagamani Ng

The User accepted the expert's answer

Share on
Question is related to
Diseases and Conditions
Lab Tests ,  

Recent questions on  Lactose intolerance

doctor1 MD

I suffer IBS , coeliac disease and am lactose intolerant and have knowingly suffered these things the past 4-5 years. I am a 20 year old female. I also have an eating disorder . In the past 24 hours I ve barely eaten due to suffering flu-like symptoms and not feelin up to eating. Through out the day I have passed a lot of stool and the consistency has changed as the day progressed. They have all smelt quite offensive, it started dark, hard and I had trouble passing - constipation as usual. As the day got on the stool got softer and looser but was still hard to pass. I passed a lose soft stool, light brown in colour about 6:30pm and I did not pass stool again for another 8 hours which was green, watery diarrhea . I have had slight cramping a but nothin out of the ordinary. Yesterday I ate a lot of wheat and dairy-based products that were high in fat and sugar.... Does this have anything to do with it? Or is it related to my flu-like symptoms? Also, I became quite overheated before I passed the diarrhea, could his have contributed towards it? Passed it twice in forty minutes, but not very much the second time. Any help or advice as to what this is would be highly appreciated! Thanks.

doctor1 MD

Hello Doctor, I am having problem with stomach for quite some time now. Currently the issue is that I have mild stomach pain (along with gas formation) after 3-4 hours after meals, and this happens mostly in cold weather conditions. In summer, this problem does not seem to occur. The pain is not severe, but more like a tingling pain and subsides if i take medicine link ENO. This is more bothersome because some times it wakes me up in the night. This problem is there for past 3 years or more, but does not seem to aggrevate. My stomach problems started about 6-7 years back, when I was staying in Germany for about 10 months. (I am basically from India). Then doctors have conducted various tests related to lactose intolerence etc but was unable to conclude on specific cause or diseasee. Then the flatulance was server and the pain also was sever. But after returning to India the problem gradually reduced and was more or less back to normal. I had tried to eliminate various food stuffs to check whether it was any allergy , but was unable to conclude anything specific. Can the current stomach pain be related to ulcers? Thanks, Ranjith (Age 38 years)

doctor1 MD

I am a 21year old female and have been experiencing hiccup- belching since the age of 13years old, so 8 years. I am lactose intolerant and avoid dairy at all costs, I take caltrate to supplement for this. It s worse if I take dairy. I also avoid fatty foods. I experience this maybe every 3rd day or even perhaps just weekly, sometimes they are accompanied by gases. I also have always had constipation problems, followed by diarreha or soft stool, when on metamucal. It is 3.30am and I am experiencing hiccup-belching-farting for more than half an hour now. It is associated with light discomfort in the stomach and a light nausea sometimes. I am not embarrassed, I am very healthy and fit. I believe this must be very bad for my throat in the longer run, all the burps scratching . Any advice please?

doctor1 MD

My son is two months old. He has been having problems with constipation, distended abdomen and partial rectal prolapse since he was born. He also has a red bumpy rash all over his face and head which seems to get worse after he eats. We had him on nutrimigen for three weeks which did not work and now we have him on similac alemintum which he has been on for about two weeks. He still has not improved at all. Do you think he could be lactose intolerant?

doctor1 MD

I am experiencing extreme flatulence ,very loud and embarrassing, and occasionally diarrhea also.

doctor1 MD

I am 78 years old and in reasonably good condition for that age. I have been taking prilasec anti-acid 30 mg a day for years --lately even with those pills I have been awakened nightly with bloating . I started taking over the counter gas pills...

doctor1 MD

AGE 70 YRS FEMALE , 1-2 PUSCELLS, ACIDIC REACTION ,SEMI FORMED ,COLOUR BROWN in stool test sample taken in morning 7:00AM. Kindly advise the meaning of this report and any precaution to be taken XXXX 0000