I workout 4-5 times a week & drink 1/4th of a can daily, it's easy to use i guess. The Celsius website says zero carbs per can. I wouldn't drink this if it had carbs. I do Keto, IF-OMAD & HIIT Cardio to stay fit. I noticed a couple reviews that mentioned 2 carbs per can. But all the cans I've received say zero carbs, the website says the same. Besides filtered water I drink this & a can or two of Sparkling Water. I can imagine if these were dropped they would get dented. This is my 4th or 5th order, luckily I've never received a bunch of smashed cans. I wouldn't say these are inexpensive, obviously they're cheaper on Amazon than a bodega but they're not cheap. Especially if you drink a can a day. In my case I don't need the full 200 mg of caffeine after I drink my coffee in the morning which I make the night before so it's cold. I drink 3oz of this around noon. A can lasts 4 days, a 12 pack gives me 50mg of caffeine for 48 days. I use cling wrap & a solid rubber band. An interesting thing I noticed is once the can is open for a couple days the flavor is better, not sure why & I'm only drinking 3 oz which is basically a sip, so it's not like I have a chance to really enjoy the flavor but it's still true. to know if drink a whole can maybe leave it open in the refrigerator for a few hours, just a thought. I don't notice any jitters even the few times I've drank an entire can, it's just clean energy. The tropical Vibe Sparkling starfruit pineapple Edition is orange. I don't drink these for my health or the vitamins. I take a supplement stack before dinner, I just use it for the clean caffeine. According to the information on the can & the website, it's green tea extracted caffeine. So useful pre/post workout or as a daily boost of energy. Hopefully some of this was helpful, luck & have a great day :)