Does Diet Soda Slow The Metabolism? | LIVESTRONG.COM

So glad I quit this stuff!!

Does Diet Soda Slow The Metabolism? | LIVESTRONG.COM.

Your metabolism will play a major role in your success or failure to lose weight. Elevating your metabolism causes your body to expend more calories, making it simpler for you to control your body weight. If this is a feat you are determined to accomplish, abstain from behaviors that may derail your attempts to live a healthier lifestyle. That may include limiting some of your favorite food and beverage items like diet sodas.

About Metabolism

Metabolism is the rate that your body expends calories. Everyone has a BMR, or basal metabolic rate, and an AMR, or active metabolic rate. The key to any successful dieting program involves increasing your BMR. Depending on the intensity, engaging in cardio exercise can boost your metabolism for up to 24 hours, according to a study published in 1999 by the American Council on Exercise.


Diet Sodas and Metabolism

Artificial sweeteners in diet sodas, such as aspartame and sucralose, cause your metabolic rate to slow by confusing your body. Normally when you consume foods or beverages that have a caloric value, your body responds by speeding its metabolism via the feedback loop involving the stomach, brain and hormones. The sweet taste of the diet soda tricks your body into thinking it is ingesting calories when it isn’t. If it becomes a regular occurrence, your body will compensate for the calories it isn’t getting by slowing its metabolism to preserve its energy stores.

Weight Gain

Many dieters choose diet sodas over other beverages because they assume that it will not impact their efforts to lose weight but according to researchers, it may cause you to gain weight. In August 2008, “Obesity” published a study conducted at the University of Texas Health Science Center that evaluated the effects of artificially sweetened beverages on long-term weight gain. The findings indicated the more diet soda the subjects consumed, the more weight they gained.

Calorie Deficit

The only way to lose weight is to create a calorie deficit. That is, you must expend more calories than you consume. Over time you may notice that your dieting efforts have reached a plateau. This occurs because your body reconfigures its caloric needs to match its caloric allowance and compensate for the calories you are no longer providing. Engaging in moderate intensity exercise for 150 minutes per week accompanied by a healthy diet that limits diet soda consumption will boost your metabolism and help you shed pounds.


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  1. #1 by Summer on August 7, 2012 - 3:58 pm

    I’ve heard this before, but usually the argument “it makes you crave more sweets to compensate” accompanies the claims. I’ve never heard that it actually can slow your metabolism. Ugh. I love diet soda, but it does make sense. I guess the same argument applies to Crystal Light, diet Iced Tea, etc… all the things I love.
    Even though I drink it, I honestly don’t like the taste of water (I swear, it tastes funky to me) and hate non-diet pop (too sweet…). I can’t win here.
    Thanks for the post – even though the truth hurts!!

    • #2 by Fitness PhoenixX on August 7, 2012 - 4:06 pm

      That was the argument I had heard too until I found this. The truth sometimes just kicks you in the gut… I used to be an avid Diet Soda drinker, myself. There ARE some alternatives to liven up your water though- you can add fruits to water, freeze fruit for “ice cubes” – think lemon, lime, watermelon, orange. Coconut water is a low-cal option. Stevia-sweetened flavorings. Brewed teas- some don’t even need sweetener! (Do you like licorice? I really like those w/ Anise- they are sweet w/o any sweetener.) Add stevia. 🙂 On the other hand- I think diet is a better option than regular and if you can just reduce consumption it’s a good thing… Thanks for reading!

  2. #3 by Healthy Way of Life on August 8, 2012 - 3:26 pm

    Reblogged this on Smiley's Healthy Way of Life.

  3. #4 by B_Lazarou on August 8, 2012 - 5:49 pm

    Reblogged this on Busy Body and commented:
    For all those who think drinking diet drinks is ok…it isn’t quit it all together!!

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