Honey needs to be raw and unheated to be of use to humans, otherwise it is simply glucose syrup.
The supermarket usually carries this type of honey, but it should be labelled. Honey distributors do not have to label if they heat-treat honey.
Manuka honey is not heat-treated, as its benefit is in its raw form. Manuka honey is more expensive, and should be used as a medicinal elixir, not necessarily to have on toast (unless you can afford it!).
Honey is not considered a traditional vegan food as it comes from bees, is not a low-FODMAP food, but is used in the pesco-vegan OMS diet.