dukan downsides?

[familyfunsters]

I'm doing PP at the moment and have an almost permanent metallic taste in my mouth. Anyone else experience this? Any ideas to combat it? Have tried chewing gum, and increasing fluid intake, but no success so far :(

If you want a serious downside- my friend's mother went on Dukan, her kidneys started to pack in, she gained 2 stone in less than a month (all from fluid retention) and then spent a fortnight in hospital while her kidneys stabilised. I guess she must have had slightly weak kidneys in the first place but it seems a bit drastic and was actually counter-productive in the weight loss department.

Probably ketosis? Eat more vegetables and dairy. I don't believe in PP days, I have PV every day even and it doesn't seem to affect weight loss.

For me big downside of PP = constipation which is a massive problem as I had an anal fissure a couple of years ago and i dont want it to come back!