For the food firms, gum that sweetens bad breath and whitens teeth is a hot market.

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Food, tobacco and chewing gum properties stayed functional along with IBM, American Can and Coca-Cola.

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Wrigley stops new sales and marketing of Alert Energy Caffeine Gum as the Food and Drug Administration investigates the safety of added caffeine.

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Smoking cessation drugs, patches, gum and lozenges are not approved by the Food and Drug Administration for anyone under 18.

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Under the auspices of Defra (The Department for Environment, Food and Rural Affairs), the companies are represented on the so-called Chewing Gum Action Group.

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At the moment, the gum is in the prototype stage, and the technology behind it awaits approval from Britain's Food Safety Authorities.

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