Today was weigh in day and I was dismayed to find I'd lost nothing. Nada. Zip. Then I googled '30 day shred first week no loss' and saw that a lot of people had experienced this. Apparently it's water weight as my body is conserving it to rebuild my muscles as I work them. So a little happier. I have lost a cm on each of my upper arms and thighs so that's something.