The present document describes a nutriprotective diet comprising a nutriprotective amount of a sugar plant syrup, a sugar plant syrup extract, a sugar plant extract, or combinations thereof The present document also describes a method of eliciting a nutriprotective effect in a subject, which comprises administering a nutriprotective amount of a nutriprotective diet according to the present invention. Also, the present document also describes a method of treating a subject with a disorder, by administering a nutriprotective amount of a nutriprotective diet according to the present invention. Also, the present document describes a process for the extraction of polyphenolic compounds from maple syrup using adsorbent materials, and the extracts obtained therefrom.