If you are asking about Dr Westman's clinic rules, you are right on both accounts. 1. Any and all nuts are "Moreish" (hard to control portion for majority) and 2. They are high in calories.
So for the obese, diabetic, and insulin resistant patients he has, and who were recruited for his early clinical trials...the rule is No Nuts.
But as a patient if you want to add nuts, and he can't talk you out of it (when I said needed nuts for crunch, he told me to eat celery
) his response often is to then try adding whatever food you miss, and we will see how you have done at the next appointment.
If you continued to move toward your goal, lucky you. If you didn't then you would be encouraged to remove "x food". One of the secrets of any clinic diet is to give the patient some autonomy...some little way, usually not critical to the outcome, that the patient owns the plan and is in control of the results. Eating nuts is not a "cheat", this is Your Diet. Have some almonds and if you gain weight this month...then you know what you need to do for you.
Keep close track of your weight or waist size...seeing the progress you have made so far may dampen the craving for nuts