Just Google "garlic blood thinner"; it's not pseudoscience, it's a very well documented effect. In fact it's not advisable to eat a lot of garlic if you have low blood pressure or bleeding disorder.
> Would ginger have a similar effect? As I understand it, they share many properties.
recovering cfs sufferer here, and n=1 but for me, yes it seems so. from my experience garlic is definitely the more potent one (personally i prefer ginger)
> Where can I find out more about the garlic that isn't a homeopathic or alternative medicine site?
difficult, but fwiw in japan we have something here called "gatlic injection" which you can literaly just go to a medical clinic and get
some of the uses are for tiredness, hangover, skincare etc [1]
Would ginger have a similar effect? As I understand it, they share many properties.