How about a peanut butter and kale sandwich? Study shows that peanut butter enhances the vitamin A value of kale

(Natural News) It looks like aside from the classic peanut butter and jelly sandwich, there’s another — and healthier — way to enjoy peanut butter. According to a recent study, adding peanut butter to kale can boost the latter’s vitamin A value. According to researchers from South Korea, U.S., and Zimbabwe, peanut butter can help...