If you know what these are

Then you must have done the same home testing course I’m doing.  Looking at nutrition, blood sugar, gut biome and so on.  I’ve been so poorly recently with stomach issues I thought it would be worth a try.  Though I think I eat pretty healthy food already, but there’s always more to be learned. 
I’m wearing a blood sugar monitor, which gives me the opportunity to see which foods cause a sudden spikes and falls, as everyone is different.  These biscuits are to be eaten on the first day, to enable a couple of tests to take place.  Such a weird colour, quite off putting.  I put them on my mum’s old plate, as I’m sure she’d have been really interested in this.