Cheers guys, thats quite helpful. Since I posed this I found that Prof G Frost at Surrey does some good PhDs. I will take a look at Brunel and Exeter. Thanks!

If anyone hears of other supplement studies, let me know

That was specifically geared towards Sports Supplements? I have used the 'find a PhD' thing and nothing came up for supplements, nutrition etc.

Anyone know of universities that have a reputation for focusing on that kind of thing?.... and don't say loughborough! LOL.