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ARSuffering from lactose intolerance?
Trouble digesting lactose?
Enjoy dairy again with Intoleran Lactase!
Intoleran Lactase 20,000 is our strongest enzyme supplement, specially formulated to act-fast and help reduce occasional gas, bloating, and discomfort associated with digesting dairy.*
Thanks to the high dosage of 20,000 FCC-units lactase enzyme in each serving size, the tablets are highly effective. Ideal when you are very sensitive to lactose or when consuming larger amounts of lactose.
Helps reduce gas and bloating associated with digesting dairy* Highest dosed lactase tablet for the entire meal Easy to break tablet Vegan, dairy, gluten and soy free Low FODMAP Certified™ and Based on scientific research
Affordable and available over the counter
Start enjoying dairy products again in just three simple steps
Step 1.
Shop your desired supplements at intoleran. The supplements will be on your doorstep in 2 – 5 days.
Step 2.
We offer Free Shipping over $10! We ship our products throughout the US free of charge for orders of $10 or more. Below $10 we charge $5.50
Step 3.
Experience what Starchway can do for you and enjoy your favorite meals again!
Join the 100.000 happy customers we’ve supported.
No effect money back
Trusted by more than 100.000 happy customers and professional dietitians worldwide
11/07/2026
Order never came
I ordered June 25th. Still haven’t received. No number to call for customer service. Very frustrating.
Verified review
08/07/2026
Slightly lowered prices or sales on all…
Slightly lowered prices or sales on all products when an actual sale happens.
Verified review
08/07/2026
really helps with digestion issues when…
really helps with digestion issues when eating starches. I feel good and can eat more foods that i enjoy. the small cases makes it easy to put in your purse too!
Verified review
07/07/2026
Intoleran fodmix has been a life saver f…
Intoleran fodmix has been a life saver for me. I couldn’t eat anything in the FODMAP group but now, I have much more variety in my diet as long as I take Intoleran. I have hardly any Timmy aches anymore. It’s fantastic!
Verified review
07/07/2026
Ordered
Ordered. Received in a timely manner. All good.
Verified review
07/07/2026
So far have only tried the Fructase and…
So far have only tried the Fructase and the Fibractase. Both have been very helpful. The Fibractase seems to work a little better than BeanZyme which has the same enzyme; Fibractase has a higher dose of the enzyme and the convenience of a capsule. I plan to play with the dose of the Fibractase a little since you are able to up to three capsules at a time.
Verified review
06/07/2026
Order still not received
Order still not received!
Verified review
06/07/2026
It works
It works. I feel like a new person.
Don’t forget to take it before you start cooking if you taste frequently.
Verified review
05/07/2026
First of all- the products work
First of all- the products work. Second- so appreciative of the ability to now buy more of my regular products in larger sizes. Third- the speed with which we now receive products is fabulous. Fourth- customer service rocks.
Verified review
03/07/2026
I LOVE this product
I LOVE this product. It’s helped my digestion when nothing else could. Customer Service is great too.
Verified review
01/07/2026
Found the product I was looking for
Found the product I was looking for . They took my pay pal card . It was delivered in a timely amount of time .
Verified review
30/06/2026
I purchased the carbohydrate and sucrose…
I purchased the carbohydrate and sucrose enzymes. They really make a difference. A little more costly to maintain and didn’t notice if there are larger quantities.
Verified review
28/06/2026
My husband loved “Activase/Quadrase
My husband loved “Activase/Quadrase.” Hopefully Fodmix will be as effective. After going through an elemination diet and reintroduction, careful choices and your enzymes have given him so much relief!
Verified review
27/06/2026
I love the ease of taking Intoleran
I love the ease of taking Intoleran.
Verified review
26/06/2026
I have questions about the drops and oth…
I have questions about the drops and other drops you offer
Verified review
25/06/2026
Great company that offers useful product…
Great company that offers useful products to customers. Questions are answered in a timely matter.
Verified review
24/06/2026
Works when others don’t
Works when others don’t. So grateful.
Verified review
24/06/2026
Great product
I really like being able to eat cheese & ice cream with days of discomfort afterwards.
Verified review
24/06/2026
I have dysbiosis
I have dysbiosis, and my doctor recommended this product. I believe my dysbiosis contributed to a hormonal imbalance and postpartum depression. I really like this product because it has helped me a lot and has been an important part of my recovery.
Verified review
23/06/2026
I am still in the trial phase of the enz…
I am still in the trial phase of the enzymes but so far they seem to help.
I had sent a question to the dietician but never received an answer so that was disappointing
Verified review
22/06/2026
Intoleran has helped me get my life back…
Intoleran has helped me get my life back. I can’t recommend the DAO supplements enough. My only concern with the product is the price, with how often I have to order these I would like some kind of frequent buyer discount at some point, but I understand the price.
Verified review
21/06/2026
My order came quickly and so far I think…
My order came quickly and so far I think I notice improvements in my digestion. Now just need to find something to increase my motility. Thank you
Verified review
20/06/2026
I am taking a pill prior to eat (started…
I am taking a pill prior to eat (started three days ago) and have no pain.
Verified review
17/06/2026
Very helpful!
Fructase helps tremendously with my fruit tolerance. So far I am still using three capsules but may try to reduce dose in the future. I find opening the capsules and sprinkling them directly on the food works best for me.
Verified review
15/06/2026
Fodmix is the best enzyme mix I’ve found…
Fodmix is the best enzyme mix I’ve found that helps with fructose intolerance. I had tried another product before trying Fodmix. While it helped it wasn’t as effective as Fodmix. For the first time in a number of years, I am able to eat without fear, and without the extreme symptoms. I still have to be aware of what I’m eating and can’t overload my GI track with too many high FODMAP foods in a day, but my diet has been greatly liberated. My only regret is that I didn’t find Fodmix before now. I plan to definitely continue using Fodmix. Thank you, Intoleran.
Verified review
13/06/2026
What a difference it makes!
It makes an amazing difference in my digestion, to the point where I forget I have issues with a variety of foods. I forget to take a dose and I’m unfortunately reminded a few hours later. It really does make a significant difference! I’m very satisfied with the Quadrase (Fodmix) product
Verified review
12/06/2026
Product support
Product support promptly shipped a replacement when I did not get the original shipment.
Verified review
12/06/2026
Enables me to eat foods that might other…
Enables me to eat foods that might otherwise cause me digestive distress
Verified review
10/06/2026
Reliable shipping and product
Reliable shipping and product
Verified review
08/06/2026
I’m so grateful for this product
I’m so grateful for this product. I went from being in pain after meals to being able to eat without extreme discomfort afterwards. I still have a way to go to get to the source of the problem but not to have to worry about feeling sick to my stomach, bloated and gassy when out for a meal is such a relief.
Verified review
08/06/2026
it was fine
it was fine. you shipped it. I got it in perfect condition. This price was nice. My friend didn’t have a lactose problem, so it seemed to work.
Verified review
07/06/2026
Digestion and energy is improving given…
Digestion and energy is improving given carbs are breaking down as they should.
Verified review
07/06/2026
Calmed the burn!
I have used a different enzyme product, but intoleran has actually taken away the burn after eating tomatoes. The other product did not work as well.
Verified review
03/06/2026
Intoleran has made my life back to a nor…
Intoleran has made my life back to a normal condition it is in fact a god send in my opinion.
Verified review
03/06/2026
It was effective but gave me a stomach a…
It was effective but gave me a stomach ache
Verified review
02/06/2026
Fructase definitely helps with my tolera…
Fructase definitely helps with my tolerance of fruit. I do have to use three caps (at least for now) and find that opening the capsules and sprinkling the powder on the first few bites is more effective for me versus taking the capsules whole. Perhaps Intoleran could manufacture a powder only form for convenience?
Verified review
02/06/2026
Miracle in a bottle.
Omgsh! This is a MIRACLE in a bottle! I can enjoy freshly milled Einkorn bread again, and pizza w/garlic and onions!!
Thanks to Fodmix life is sweet again! Hallelujah! Praise the Lord! I was worried taking this might have side effects like constipation-but-NOOO! I have not had any problems-it has all been a joy@ I can freely eat without worry of having gas/bloating, etc. Life is good!
Verified review
02/06/2026
Starchway Pro works
Starchway Pro actually works… I was able to eat a slice of bread! That meal required several pills, so it was a very expensive indulgence, but I’m happy to have the option. The original Starchway (non-pro) helped with other troublesome starches such as rice, but even the maximum suggested dose wasn’t enough to overcome my very low maltase levels. Also I appreciate the fast shipping! The downside is price. It can be prohibitive for those of us who still require multiple pills per meal/day. However, the cost was worth it during recent travel where I couldn’t anticipate available food options.
Verified review
31/05/2026
Great products and great service
Great products and great service
Verified review
29/05/2026
Intoleran offers unique products that su…
Intoleran offers unique products that support GI health.
Verified review
29/05/2026
Excellent
Excellent
Verified review
26/05/2026
I liked that I didn’t have bloating or b…
I liked that I didn’t have bloating or bowel issues after eating dairy.
Verified review
26/05/2026
It literally cured my lactose intoleranc…
It literally cured my lactose intolerance, freaking amazing. I can eat at restaurants without worrying about lactaid or the nearest restroom. Holy moly its great.
Verified review
25/05/2026
Never arrived
Unfortunately cannot truly rate the product, because it never arrived. Tracking says it’s headed back to the sender. I’ve reached out to customer service to let them know.
Verified review
21/05/2026
Life changing
Carbostarch has been life changing for my son w multiple medical issues. His diet would be so limited without it. So thankful it exists and allows him to live a normal life!
Verified review
16/05/2026
My son’s nutritionist recommended this b…
My son’s nutritionist recommended this because he has many food intolerances. We have been using it for two months now, and so far it has helped him a lot. He has even gained some weight, which had been very difficult for him. We are very happy with the results.
Verified review
16/05/2026
When I started taking the supplement for…
When I started taking the supplement for fat digestion, one tablet did not appear to work. Maybe I was taking it at the wrong time.However, when I increase the supplement to three it worked really well almost too well so I’m going to trim down to at least two. But so far they’re easy to swallow and appears to be working for me.
Verified review
15/05/2026
I have had stomach issues for many years…
I have had stomach issues for many years. Lots of foods made my stomach swell up. After finding the digestive enzymes, I can get just about anything I like and no more stomach issues.
Verified review
14/05/2026
Outstanding service and quality of produ…
Outstanding service and quality of products. Wish I had found you sooner. My health has improved 100%
Verified review
14/05/2026
Quick delivery.
My last few orders have arrived quite quickly. I am trying the new Starchway Pro. I’ll see how I do with it.
Verified review
100-Day Satisfaction Guarantee!
We believe in our product, and we want you to as well. Try Lactase 20,000 risk-free for 100 days. If you still get bloated after the intake of starch or sucrose and you’re not fully satisfied, we’ll give you a full refund—no questions asked.
Why Intoleran
Expert since 2008
Since 2008, we’ve dedicated ourselves to crafting nutritional supplements. Our team of dieticians meticulously develops our products with exceptional care
Pure ingredients
Crafted from pure, natural ingredients, our blend ensures everyone can enjoy the benefits of Lactase 20,000
Science-based
Healthcare professionals and dietitians support our scientifically-backed solution.
What is lactose?
Lactose is a specific type of sugar found in milk and other dairy products. The enzyme lactase breaks down lactose into glucose and galactose, allowing the intestinal wall to absorb it. If there is insufficient lactase enzyme present, lactose cannot be broken down and absorbed in the small intestine.
Intoleran products contain the digestive enzyme lactase, which aids in the digestion of lactose, reducing the risk of associated complaints.
Watch our video on lactose intolerance!
Discover the power of lactase enzymes
Are you done skipping all the delicious foods containing dairy?
Lactase 20.000 is specially formulated with the digestive enzyme Lactase, designed to help with the digestion of Lactose and dairy. It Helps reduce occasional gas, bloating, and discomfort associated with lactose intolerance.
Shop our popular lactase supplements
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$29.99 — available on subscription from from $29.99 Original price was: $29.99.$26.99Current price is: $26.99. / month
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Free advice from our dietitians
Digestive complaints? Let us help you, like we’ve helped many others. We will help you to find the solution that fits your needs best.
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