First off though a disclaimer – I’m not a nutritionist, just an avid reader, long-time follower of VitalSmarts and self-experimenter, as Ron likes to put it, that have come across an alternate hypothesis that speaks to and apparently addresses weight problems (as a side effect I might add) so what I’m sharing is purely from personal experience and should not be construed as advice.

#1 – measure daily, but average the last 5-7 days’ worth of readings to create a trend. Daily weight fluctuations are normal and can be rather noticeable given the body’s attempt to keep your electrolyte balance (water content & minerals) in balance. If you have Excel or similar you can easily tabulate your daily readings, create a graph and add a trend-line. This gives you an easy visual cue and much needed motivation (as long as it’s going in the right direction). Janet did point out a very valid point and depending on the type of diet you could be losing lean mass and fat in equal proportions instead of majority fat.

#2 – explore very low carb, high fat, moderate protein diets as it lowers the amount of the hormone insulin (major culprit) flowing around in your body (carbs typically <50-70g/day). I'll spare you the cellular biology, biochemistry and history lessons, but having gone through a similar change in the last year all I can say is that I am still very happy with the results. You can find a lot more on this out there by looking into people like Gary Taubes, Ron Rosedale, Peter Attia, etc.