I've just started my first day, I didn't like the porridge at first, but got to like it. Something I've found from talking to people is everyone really recommends is drinking lots of water, I think it's over 4 pints/2 litres. And if you have a tetra pack or bar, add an extra half pint because they're so condensed. You're not adding water to them. I don't normally drink very much, and so think that it's going to be a struggle and I might end up with a few headaches. But trying to drink lots, so hopefully it'll help!