I love the taste of cloves in food but have honestly never seen anything telling me they were 'good for diabetics' but there again I only ever search trusted sources for any food advice. Read a news article this morning about James Martin (the chef) having a rant about the world and his dog constantly telling us we need to eat less saturated fat and salt whereas he reckons people should never be put off cooking good wholesome meals for themselves and their families daily. Well yeah OK James, but there again so many people these days don't or can't do that very thing (maybe they literally have no cooking skills because their parents didn't encourage them to cook or (now especially) no money) and the danger is they resort to consuming ready-made crap so once they eat one eg Pringle, before they know it they've eaten a whole tube of em, instead of stopping at the sensible 3-ish and saving the rest to enjoy another day).
Anyway - excerpt form the BBC Good Food site about cloves and it does mention blood glucose - but read the caveats they also state - tested on animals, which animals cos we're human animals not any other sort - and we know they use a lot of mice in medical experiments but just cos whatever works well for them, that doesn't automatically mean it'll work the same way for us.
I'd say by all means continue to enjoy their taste cos they won't do you any harm AFAIK - but merely don't expect any benefit either.
