Vegetables and fruits servings

SC, sulfite, bisulfite, metabisulfite), which inhibit PPO and may combine with quinones or reduce quinones to phenols, thereby preventing pigment formation (4, 9-10). Sulfites can produce acute allergic reactions in some asthmatics, however, with serious if not lethal consequences (11-12). Therefore, the Food and Drug Administration has banned the use of sulfites in fruits and vegetables served or sold raw to consumers (13) and has proposed restrictions on the use of sulfites in certain fresh potato products (14). 

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