A Doctor Answers: How Much Water Should I Be Drinking?

Our viewer Sharon from New York City is active and eats well, but she knows she has one problem: She doesn’t drink enough water.

"I stay hydrated with water, but I’m not a natural water drinker," she says. "I like my decaf coffee and my prosecco."

RELATED: You Won't Believe What's Dehydrating You

Us, too, Sharon! So what should we really be drinking and most importantly, how much?

THE HYDRATION PYRAMID

Like the food pyramid, the hydration pyramid shows what you should consume more of (beverages at the bottom) and what you should try to avoid or consume with moderation (beverages at the top).

You can probably guess what’s at the top: Soda. "Soda [has] no nutritional value whatsoever," Dr. Ian says. Next are sports drinks, which can be high in calories and sugar.

Rachael Ray Show

"You need sports drinks during certain times for certain exercises, but in general, for the average person who is not working out a lot, sports drinks are not your friends," he explains.

Alcohol and coffee are next on the pyramid.

"Red wine has a lot of resveratrol, which [has] antioxidants, which is very good for you," says Dr. Ian. "You can have some [coffee], but don’t go crazy." (Leading NYC dermatologist Dr. Bowe says resveratrol is a powerful anti-aging ingredient for the skin!)

The base of the pyramid consists of juice, milk, tea and water.

"People always talk about juice and the sugar, but don’t just look at the sugar. Look at the sugar package: It comes with phytonutrients, vitamins and minerals," he explains.

"So, yes, there is sugar in juice," the doc explains, "but it's natural sugar."

(Especially if you're making your own, like Daphne's Oz's Homemade Fruit "Soda".)

RELATED: What's the Healthiest Kind of Juice for Kids?

Dr. Ian feels similarly about dairy, which is rich in calcium, vitamin D and protein. Celeb trainer Bob Harper recommends loading up your juice with lots of greens and adding an apple or another piece of fruit for just a bit of sweetness.

Finally, water should be most of what we drink, says Dr. Ian.

HOW MUCH TO DRINK BEFORE, DURING AND AFTER EXERCISE

One hour before workout: 15 to 20 ounces to hydrate muscles and soft tissues

15 minutes before workout: Another 8 to 10 ounces

During workout: 6 to 8 ounces about every 15 minutes or so (you may need to drink more if you're sweating heavily, especially if you're exercising outdoors in very hot weather)

After workout: 16 to 20 ounces of water for every pound lost within 30 minutes of working out to rehydrate yourself

That's almost eight glasses just during your workout!

If you’re like most of us and have trouble getting enough hydration, try Dr. Ian’s flavorful secret: Dr. Ian takes a big pitcher and fills it with fruit, which infuses the water with flavor. He recommends trying oranges to add a fruity kick!