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Will Drinking Diet Soda Make Me Fat and Sick?

by
author image Joe Donatelli
Joe Donatelli is a journalist in Los Angeles and the publisher of the Humor Columnist website. His work has appeared in Salon, Cracked.com, DAME and other publications. Donatelli is a graduate of Ohio University's E.W. Scripps School of Journalism.
Will Drinking Diet Soda Make Me Fat and Sick?
It’s possible that diet sodas trigger an insulin response that prevents fat from burning. Photo Credit Eric Raptosh Photography/Photographer's Choice/Getty Images

Overview

When I was in college I worked at the student newspaper, which was one block from a Burger King, Wendy’s, Taco Bell, pizza shop, sandwich cart, gyro stand and a food trailer beloved by all Ohio University students called the Burrito Buggy.

We often worked through the night, and I drank a lot of soda back then. It showed. I was roughly the size of a Burrito Buggy.

I took a jogging class -- hey, I needed the credits -- and I had so much trouble running for more than a few minutes on the school bike path that I decided to make some changes.

Would I stop eating fast food and overstuffed burritos?

Heck, no. But I decided I would switch to diet soda when I ate them.

See: compromise.

Thus began my relationship with diet soda.

Since then, I’ve always believed that diet soda was a good thing because it had fewer calories than regular soda. I never actually stopped to think about what was going into my body in place of those regular soda calories.

Like so many diet soda drinkers, I wanted easy answers with a side of no consequences.

“After I quit all my back pain went away and my migraines decreased by about 75 percent. I eventually gave up all caffeine and aspartame products and I'm pretty much migraine-free and pain-free.”

Mary Ellen, director of communications

Links Between Diet Soda and Weight Gain

Will Drinking Diet Soda Make Me Fat and Sick?
Rum and diet cola with limes. There is research that says diet drinks mixed with alcohol get drinkers more intoxicated than regular drinks. Photo Credit Mizina/iStock/Getty Images

It’s a scientific mystery, right up there with the unified field theory and why Justin Bieber is suddenly malfunctioning.

No one can say with certainty what diet soda does to our bodies. No one has found the smoking gun yet, or in this case, the quantifiable research showing the side effects of what the zero-calorie drinks can do to the human body.

A few studies have shown links between diet soda and weight gain. Wait a second, you say. Most diet sodas have zero calories. How would that even be possible? It’s possible that diet sodas trigger an insulin response that prevents fat from burning. (See the LIVESTRONG.com article “Know Thy Enemy: Carbs.”)

Researchers have also looked into the possibility that sweet drinks lead to cravings for more sweets, which causes people to eat more. Heart disease and stroke, diabetes and depression have also been linked to diet soda consumption.

Remember the key words here are “linked to,” not “caused by.”

There is even research that says diet drinks mixed with alcohol get drinkers more intoxicated than regular drinks. This is problematic because the more intoxicated you get, the lower your inhibition. The lower your inhibition, the more likely you are to experiment with using leftover pizza slices as sandwich breading at 3 a.m.

Here’s an example of one study that says diet soda may or may not be harmful. The University of North Carolina at Chapel Hill examined individuals’ beverage consumption patterns along with their diets. Study author Kiyah Duffey, Ph.D., said the team’s analysis found that people who consumed diet beverages tended to be less healthy than people who did not consume them.

But that’s not the whole story.

More than 4,000 young adults contributed data to this study over 20 years. Participants were later divided into two groups. Group 1 ate a diet that contained more fruit, fish, whole grains, nuts, and milk. Group 2 reported consuming higher amounts of fast food, meat, poultry, pizza and snacks.

The healthiest people were the Group 1, healthy eaters who did not drink diet beverages. According to the researchers, they had a lower risk of high waist circumference, lower risk of high triglyceride levels and lower risk of metabolic syndrome. What was the second-healthiest group? It was Group 1 healthy eaters who consumed diet beverages.

Members of Group 2, those non healthy eaters, had a higher risk of heart disease no matter what they drank.

What the North Carolina research revealed is that the context in which diet sodas are consumed matters.

Many of the studies proclaiming “diet sodas are killing us all!” have received so much attention, are observational, or have been conducted on animals. The findings are often interesting, but they’re not conclusive, and some of them have come under heavy criticism. Even the researchers who publish studies critical of diet soda agree that more research is needed.

“Diet is a really challenging thing to measure,” Duffey said. “People have all kinds of relationships with food. I think we’re only beginning to understand the ways that other factors in our lives influence dietary behavior and how that ultimately has an impact on our health, how food and other psychological aspects or sociological aspects and the interplay they have with our choices affects our health outcomes in the long term.”

What Happens to Your Health When You Stop Drinking Diet Soda?

Will Drinking Diet Soda Make Me Fat and Sick?
Not everyone who drinks diet soda experiences health problems. Not everyone who quits sees their health improve. Photo Credit KucherAV/iStock/Getty Images

I asked a handful of people who drank a lot of diet soda and then quit about what happened to their health afterward.

Some said they quit drinking copious amounts of diet soda, and nothing changed. They felt the same one day or one year later.

Others saw their health improve.

This is important.

Not everyone who drinks diet soda experiences health problems. Not everyone who quits sees their health improve.

I included the following stories of real people I’ve interviewed because they show the potential for health improvement among people who drink large amounts of diet soda.

NAME: Jeanne S., writer

DIET SODA CONSUMPTION: Up to 4 to 6 liters per day

“Quitting diet soda may be one of the best things I've ever done for my health. I don't have much heartburn anymore. I don't get freaky eye twitches that make me crazy. And perhaps best of all, I don't get the shakes and feel panicky when I don't have access to diet soda.” (You can read Jeanne’s story about quitting in the reference links below. I came across it while researching this article.)

NAME: Mary Ellen, director of communications

DIET SODA CONSUMPTION: A can plus a medium or large fountain drink per day

“After I quit all my back pain went away and my migraines decreased by about 75 percent. I eventually gave up all caffeine and aspartame products and I'm pretty much migraine-free and pain-free. It took about three weeks to get over the withdrawal headaches but it’s been totally worth it.”

NAME: Jeanne, writer

DIET SODA CONSUMPTION: Constant refills at soda fountains

“Quitting diet soda did not dramatically improve my health that I know of. I didn't lose a ton of weight or all of a sudden gain the energy to start working out a lot. However, the main thing that has somewhat changed is that I don't eat as poorly anymore. To me, the best part about eating greasy food was always washing it down with a diet soda. Now that I don't drink the stuff, bad food doesn't taste as good. I mean, it still tastes good, but I don't think it's worth wasting the calories on it if it's not amazing. A Double-Double Animal Style from In-N-Out just doesn't taste the same if it's not accompanied by a diet soda. So basically by giving up diet soda, I've given up eating a lot of stuff that I probably shouldn't have been eating in the first place.”

NAME: Holly, marketing

DIET SODA CONSUMPTION: Three cans a day

“I stopped cold turkey, the day after which I was severely taunted in the employee cafeteria by a coworker who was armed with a frosty can of the stuff. Within a month of telling him where he could put that can, I was redeemed when I noticed that my hair stopped coming out in handfuls in the shower. That was probably the main thing I noticed. Other than that, I'm less dependent on caffeine, and I don't go Incredible Hulk on Saturday mornings anymore when I find I've run out of [diet soda].”

In Conclusion - Can You Get Something for Nothing?

Will Drinking Diet Soda Make Me Fat and Sick?
Diet sodas are popular because they promise something -- the sweet taste of a regular soda -- in return for nothing -- zero regular soda calories. Do you believe you can actually receive something in return for nothing? Photo Credit Elke Meitzel/Cultura/Getty Images

Maybe diet soft drinks are harmful. Or maybe they’re not. Or maybe they negatively affect some people and not others. No one knows for sure.

So what are we supposed to do until science sorts it out?

I have a suggestion. Diet sodas are popular because they promise something (the sweet taste of a regular soda) in return for nothing (zero regular soda calories).

Ask yourself this: Do you believe you can actually receive something in return for nothing? Or do you believe in some universal/philosophical/political version of Newton’s Third Law, which says that every action has an equal and opposite reaction?

I did quite a bit of intensive field research in college on actions and reactions at the Burrito Buggy, so I know my answer.

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