Nutrology’s Beet Natural O2 - All-Natural Pre-Workout Featuring Beet Root Powder. Increase Energy, Focus – Vitamin C, Yerba Mate, Mushroom O₂ Blend, Electrolyte Blend – Passion Fruit (30 Servings)

This stuff is pretty great. I don't mind the slightly bad taste because it works! It doesn't give you the jitters or body tingles like most pre-workouts. But I can feel my body temp rise and that's when I know it's working.However, it is very expensive for the amount you receive. The container is not even full when you get it. Using the suggested 2 scoops will run out fast. But I only use one.

Taste is strong and a little bitter, but works well.

I used to purchase preworkout formulas from GNC, but then I realized EVERY SINGLE supplement there is made with acesulfame k/aspartame (known carcinogens). Obviously I was distraught because I felt that I was doomed to never find a preworkout that gave me my early morning boost without also loading me up with carcinogens. Beet Natural offers a gentle energy boost with zero jitters and no comedown crash. I am already sensitive to stimulants so this formula works great for me. The flavor is what you’d expect (tastes like beets), but it’s worth knowing I’m not polluting my body right before I exercise/take on the day. Don’t expect the extreme-o style energy boost and skin tingling high you get with most GNC preworkout products. If that’s your ideal then this product won’t do it for you. But if you’re wanting that extra pick me up before hitting the gym, but don’t want to feel like you’re on crack the entire time...then this is definitely a great product. I recommend it.

I have tried many pre-workouts and this one has been my favorite! I usually take 1.5 scoops, even though it says to take 2. It really depends per individual. I don't get nauseous or feel sick like I do with all the other pre-workouts I have tried.I can definitely feel the energy while working out- my heart rate also increases. I have noticed this because I have gone to the gym without taking the pre-workout so I have been able to compare the difference.The taste is not bad after a while- you get used to it.

This product was not available for a few months because they changed their formula and added a variety of different mushrooms. The flavor is horrid. It tastes and smells like drinking mushroom soup! I am very disappointed as I had been using this product for 4 years! Also, didn't notice any of the benefits that I had before besides regularity.