Milk and orange juice are both high in potassium. V8 low sodium is incredibly high in potassium, about 900mg per 8 oz serving. But they all need refrigeration.
Are there high potassium beverages that don’t require refrigeration?
I guess buying V8 and orange juice in a can could work. That is more expensive than buying the 46-64oz containers, but I wouldn’t need to refrigerate it.
I don’t like the taste of powdered milk.
Anything else I can try?
A potassium tablet and a glass of water?
Potassium bicarbonate dissolved in a glass of water?
How long will it sit out? If you’ll finish it in a day or two, the V8 will be fine at RT. I wouldn’t let it go more than 48 hours though (well, actually I would, but wouldn’t recommend it for someone else).
Like Blake said, you could add potassium bicarbonate (or chloride, I suppose) to water and make your own arbitrarily strong K drink. Adding sugar-free Crystal Lite or something will make it taste better.
Is there a reason you want it in drink form? Because there are plenty of high-potassium fruits and vegetables that are fine at room temp and quick to eat; bananas, oranges, piece of broccoli, etc.
Edit : never mind, just reread the OP
Coconut water isn’t as high in potassium as orange juice, but it’s another option. About 250mg/serving, but remember a serving is much smaller than most people drink. My local Mexican grocery carries UHT single serve packs of coconut water that don’t require refrigeration, although to be honest, they don’t *taste *so great at room temp.
But if you need to supplement potassium, my suggestion is water to drink and a potassium supplement for the potassium. Easier to control the dose, easier to take with you and far cheaper per mg, without the excess empty calories of fruit or vegetable juices.
You can also buy shelf stable milk, although you still need to refrigerate them once open or stick with single-serving containers, which tend to be rather pricey.
KCl probably has a shelf life of a few billion (if not trillion) years. Until the protons decay.
Why are you specifically looking for a drink?
An orange has as much potassium as orange juice, right there in a convenient, round, room-temperature-stable package.
My last hospital stay I was given Breeze by Boost. Evil juice box like, but containing up to 25% of the RDA of many vitamins and minerals, and even some protein. I lived on it and chicken broth for a couple of days following surgery.
All the convenience of a juice box, and nutrition too.
Get some NuSalt at the store, add some to some water, chug it down. There’s all the potassium you can handle, all for pennies (per dose).
Not only that, but it has a non-slip, waterproof, biodegradable wrapping that smells good. And it’s sectioned into bite-sized, easy-to-eat morsels. So nice to have our needs met by a benevolent intelligent designer!
I drink Ensure. I believe it comes from the grocery store shelf (Mister Vigilante does the shopping), but probably needs to be refrigerated at some point. The one called Revigor (I think that’s the name; strawberry flavor) has 900 mg of potassium; that’s what I drink it for.
It does come in powder form though. Ensure.com
Well, some of it will turn into argon or calcium, since one of the isotopes in naturally occurring potassium is radioactive (and, if anyone is confused, not due to proton decay, which may or may not be a real thing).
True, but he may not be wanting the extra sodium he would get that way.
Nu Salt (and many other salt substitutes) are mostly potassium chloride with some binders/fillers, but no NaCl.
Lite Salt is half NaCl, half KCl. NuSalt is all KCl (or at least the majority is) but it is sodium free.
I’ve never been able to figure out the theory behind limiting the dosage of potassium supplements to no more than 99 mg K per tablet (around 3% of the RDA for potassium) while allowing the sale of KCl salt substitutes that contain 650 mg K per quarter teaspoon. On a cost per dose basis, potassium supplements are for chumps.
I think it has something to do with the risk of pills getting caught in your throat and damaging your tissues with a concentrated blast of potassium salt.