**11. Sequence for literature review**

Surveys on traditional food systems are commonly used to document information on indige‐ nous foods with health-benefits [94]. Google search was used to review literature on published works on ethnobotanical surveys in northern and southern regions of Nigeria. These were used to identify commonly consumed indigenous plants. Some related unpublished works were also used to supplement published data. Information obtained include botanical names of the plant foods where available, habitat (cultivated (C), wild (W) or semi-wild (S)), part used, culinary uses, anti-diabetic potentials/effects of single foods and diets and corresponding references. From the profile of edible indigenous plant foods, those that have antdiabetic potentials were selected based on their bioactive constituents, proven to be active ingredients in attenuating post-prandial blood glucose. Additional information on anti-diabetic effects of some of the plant foods/diets evidenced by *in vivo* or *in vitro* studies were also elucidated.
