MB3 152b: Perfume and Mouthwash on Shabbos (322:4-5)

Cutting a pill on Shabbos, using a match as a toothpick.

Breaking apart pieces of aromatic wood on Shabbos so they emit their scent for a sick person.

Using aromatic oil and mouthwash on Shabbos.

Cutting items on Shabbos for a constructive purpose is prohibited.

Does the melacha of cutting apply to food?