More zinc may help your child learn faster, says James J. Penland, a researcher for the USDA Human Nutrition Center.
In a new study, he gave 209 seventh-graders a morning glass of fruit juice - either plain or fortified with 10 or 20 milligrams ...
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In a new study, he gave 209 seventh-graders a morning glass of fruit juice - either plain or fortified with 10 or 20 milligrams ...
More Information