LOS ANGELES (CBS13) — Sales of Powerade, Gatorade and other ports drinks could soon be limited at more California schools.

Supporters of a proposed bill that would limit the sales of sports drinks during the day at middle and high school campuses say most sports drinks contain high-fructose corn syrup and other high-calorie sweeteners.

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State Assemblyman Das Williams authored the bill, which is sponsored by the California Medical Association. AB 1746 would amend existing education code that already bans the sale of sodas in schools.

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“This bill aims to set the example of making healthful choices in life. Research shows that these sugary drinks directly relate to higher incidents of obesity and many youth – and adults – are still consuming them unnecessarily,” Assemblymember Williams said. “A 32 ounce sports drink has 14 teaspoons of sugar, kids jacked up on that much sugar have a harder time learning.”

Sports drinks are already banned at elementary schools.

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If passed, it will go into effect next year.