I had no issues with the Altitude Advantage. It did not upset my stomach. I went to Wyoming from Texas for a 7 day backpacking course spending most of my time around 10,500 feet of elevation. I normally have a day or two of being winded and evenings sometimes I can have difficulty breathing when going to bed. I had zero issues the whole time. I wasn't able to train like normal for the elevation due to a knee injury so I was grateful for the supplements as it seemed they helped.

Coming from 1500ft in the mid west to over 10k feet and getting sick after packing in can be dangerous and at the very least ruin a hunt that you spent months or years preparing for. Take advantage of every tool you can use.

Living in the Midwest, this product is an absolute must when I travel west for mountain hunts. I’ve done the hunts with and without and there is a very noticeable difference! I won’t go to the mountains without this in my pack!

I've used this with good luck on avoiding altitude sickness and now I've purchased it for a family who usually struggles with altitude

Great product to get ready to go into altitude... Makes the transition easier for me ...

Great

i will use on my next hunt over 8000 feet

As I have aged (60), it has been more difficult going to elevation. This has helped so much. It takes less time to acclimate and there has been a quicker recovery.

Seems to really help when we travel from Oklahoma to higher elevations.

Great addition to physical conditioning when getting ready for high altitude hunts.

Works everytime!

Attitude advantage builds your bodies the ability to handle high attitude hunting experience.

I’ve taken Altitude Advantage exclusively the last 3 season and have found this pill gets me through the tough hiking days. It’s that extra edge I need to keep climbing.

I love this stuff. I start taking it about a month before my high-altitude hunts, and the difference it makes is considerable. Since I started using it, I have never had any altitude issues and I keep hunting the same unit so the only change I made is using Altitude Advantage

I take altitude advantage every year before I go on my western elk hunt. Line in PA at 2000 feet elevation travel west to hunt at 10,000 feet plus. I think it helps me accumulate to the thinner air a lot faster. Started taking it after my 2 trip when I got altitude sickness. Since I started taking altitude advantage before my trips I haven’t got altitude sickness.

My friends and I decided to hike the Inca Trail in Peru. They are out in Washington State at sea level and I live in Wisconsin, so altitude isn't something we can prepare well for. I also get motion sickness and altitude sickness quite easily. Taking Altitude Advantage I believe was a huge impact on how well I felt along the entire hike. With elevation changes from 9,000- 13,000 ft back down to 11,000ft all in one day it could be a lot for anyone but with Altitude Advantage I had no symptoms whatsoever. Would highly recommend this product to anyone!

I’ll start using this in a couple weeks for a Colorado trip to 12k feet. Shipped and arrived very quickly.

Altitude Advantage definitely works for me. I take one daily and two on days I’ll be at high altitude or if I’ll be in the gym. Can tell a difference!

I am a multiple episode sufferer of MAS and even HAPE (twice). I am addicted to hunting elk and mulies in the Rockies, so I have dealt with my altitude sickness issues over the years. Diamox alone has made it possible for me to continue my passion, but alone I still had issues, especially the first 4 days. Fall of 2023 I added Altitude Advantage, and BY FAR, I had the best experience with altitude of my >dozen trips to hunt the Rockies. I ordered more again to prep for my WY Mule deer hunt this September! Just do it.

My sons and I take this every year during Elk season. We are Illinois flat landers. Very minimal if any problem with altitude in the mountains. Would not want to head west without it!

I have used this product for probably a decade as part of my normal routine, preparing for and adapting to altitude. I take it for several days before and several days after arriving at altitude. I believe it does help in tangible and intangible ways. I still get some headaches, so I also take Diomox, and I am good to go!

Used it last year for my CO elk hunt, had no problems acclimating to altitude from Houston! Not sure how it works, but it sure seemed to

I bought a bottle and split it with a buddy before we went on an archery elk hunt. In Pa we live at about 1300 feet, we planned to start our hunt at about 10,200. I started taking my share about 10 days before the hunt. He didn’t want to take his. I know peoples bodies adapt differently, but when we pulled in to the trail head after a 24 hour drive, I was ready to go. No issues whatsoever. Didn’t feel sick, didn't feel groggy, no headache, NOTHING… him on the other hand, not so well. Literally within about 10 minutes of being out of the truck he had a headache, felt sick, eyes bloodshot, had to clear out the backseat so he could lay down. While I was picking a spot to put up a tent for the night, he was in bad shape in the truck. Eventually he had to abort our first evening. He ended up buying us a hotel room in the closest town and spent the evening in bed to get his body adapted.
I’m not saying he would have gotten sick either way, but the way I felt compared to him was night and day. I’m a firm believer in Altitude Advantage!
Try it!

Bought for a hunt later this year based on the reviews. Pumped to give it a shot

I used this last year; I don't have problems with Altitude sickness like some do, but I was able to keep up with my guide to the point he finally asked me "how old are you"? When I told him 69, he just laughed and grinned.

Really helps take the edge off when going to high elevations. I live at sea level, so Altitude Advantage is key for me anytime I go in the mountains to hunt.

I live at 500ft and it helps with when I'm hunting at 6000 to 9000. I seem to not have to catch my breath as much. Always taking these when I'm going to be above 4000.

I think it helped. I don’t typically have issues at elevation, but there is always that “yuck” feeling the first day. This season I was a little short on time and needed to hit the trail hard on day 1. So, I thought I’d give this stuff a chance. It didn’t 100% remove the first day “yuck” feeling of being at 10,000 but it curbed it a bunch. I did not have to take extra time to acclimate so I give it 5 stars. Probably using again next season.

I live at 800 ft and have been hunting the Rockies every year since 2003. I always dealt with low grade altitude symptoms (low grade headache, adema, restless sleep, etc). I started using AA in 2015. I have 0 issues with these symptoms since. I won't head to the mountains without it. Great product!