Got a question. I have been on Atkins for about 3 weeks and lost about 7lbs or so...the problem is that I bought the ketone strips and I test using them just about every night around the same time. The only thing is that they don't really turn..According to the package, my strips only show "trace" amounts of ketones or none at all? However, I am still managing to lose some weight and I feel really good. Is it possible that my ketones are not released into the urine or something? My brother in law is doing the same plan. He has lost around 20 lbs in 2 months and his ketone strips actually turn purple? In the Atkin's book he said they should turn purple? I guess i'm just afriad I'm not doing something right or that my weight loss will stall?