For effective weight loss, one must be flexible. There is a benefit of breaking the rules, if even only for a period of time. So, for instance, you don’t have to eat 6 small meals a day. You could decide what works the best for you. So, if you do better with around 4 meals a day, follow that, no matter what your nutritionist has asked you to do. The body will adapt to it gradually. Be sure to continually adapt to your circumstances. This also allows you to switch things up because what worked best for you a year ago might not work the best for you today. In other words, obey the principles without being bound by them.