I am a Police officer and a volunteer firefighter. Last weekend i worked 8 hours a day outside in the 90+ degree temps for two days and then had a structure fire Sunday night i was severely dehydrated come Monday morning even after drinking several bottles of water throughout both days. One Banana bag drink Monday morning and i was back to 90% another one Tuesday and i was at 110%. The taste isn't bad just use as little water as recommended and chug it. Its worth the taste. Thanks for the great product.