Arizona Green Tea does hydrate you. It’s mostly water, and the caffeine it contains isn’t enough to cancel out the fluid you’re taking in. But the original version packs around 51 grams of sugar per 23-ounce can, which makes it a poor choice as your go-to hydration source even though it technically adds to your fluid intake.
Why It Still Hydrates Despite the Caffeine
Green tea contains caffeine, which is technically a diuretic, meaning it signals your kidneys to produce more urine. That’s where the concern about dehydration comes from. But as the Mayo Clinic explains, the fluid in caffeinated drinks generally balances out the diuretic effect at typical caffeine levels. A 23-ounce can of Arizona Green Tea contains roughly 45 to 50 milligrams of caffeine, which is modest compared to a cup of coffee (around 95 milligrams) or even a standard cup of brewed green tea.
High doses of caffeine taken all at once can increase urine output, especially if you’re not a regular caffeine consumer. But the amount in Arizona Green Tea falls well below that threshold. The water in the can more than compensates for any extra urine your body produces, so the net effect is hydration, not dehydration.
The Sugar Problem
The original Arizona Green Tea with Ginseng and Honey is sweetened with high fructose corn syrup and honey. A single 23-ounce can contains about 51 grams of sugar and around 210 calories. Healthline has described the original version as “the equivalent of tea-flavored sugar water,” and the numbers back that up. For context, the American Heart Association recommends no more than 36 grams of added sugar per day for men and 25 grams for women. One can blows past both limits.
The CDC lists sweetened tea beverages alongside sodas, sports drinks, and energy drinks as leading sources of added sugar in the American diet. Frequently drinking sugar-sweetened beverages is associated with weight gain, type 2 diabetes, heart disease, tooth decay, and non-alcoholic liver disease. So while the tea hydrates you in the short term, relying on it daily introduces risks that plain water simply doesn’t carry.
What About the Diet Version?
Arizona also makes a Diet Green Tea with Ginseng, which changes the equation significantly. The diet version contains zero calories and only about 0.9 grams of sugar per serving (roughly 2.7 grams for an entire 23-ounce can). That’s a dramatic drop from 51 grams. If hydration is your main goal and you prefer the taste of Arizona Green Tea over plain water, the diet version gives you almost the same fluid benefit without the sugar load.
No Electrolytes to Speak Of
One thing Arizona Green Tea won’t do is replenish electrolytes. The original version contains essentially zero sodium and no meaningful potassium. If you’re looking for hydration after heavy sweating, exercise, or illness, you’ll need a drink that actually replaces the minerals your body lost. Arizona Green Tea is closer to flavored water than a recovery drink in that sense.
This matters because people sometimes reach for iced tea after a workout or on a hot day thinking it covers all their bases. It replaces fluid, yes. But if you’ve been sweating heavily, you also need sodium and potassium, and this tea provides neither.
How It Compares to Brewed Green Tea
Brewing your own green tea at home and drinking it unsweetened gives you the same hydration benefit with zero sugar, zero calories, and a similar (sometimes slightly higher) caffeine content. You also get the full concentration of antioxidants found in green tea leaves, which may be diluted in a mass-produced bottled version that’s designed more for taste than health benefits.
If you enjoy the flavor of green tea and want it as a regular part of how you stay hydrated, home-brewed is the better option by a wide margin. You control the sweetness, and the cost per serving is a fraction of what you’d pay for cans. That said, grabbing an Arizona from a convenience store on a hot afternoon isn’t going to dehydrate you. It’s the habit of drinking it daily, and the sugar that comes with it, that becomes the issue.
The Bottom Line on Hydration
Arizona Green Tea hydrates you effectively in the moment. The caffeine content is too low to meaningfully offset the 23 ounces of fluid you’re consuming. But “hydrating” and “healthy hydration source” aren’t the same thing. The original version delivers a significant amount of sugar with no electrolytes, making it a poor substitute for water as an everyday drink. The diet version sidesteps most of that concern, and home-brewed unsweetened green tea sidesteps all of it.