I do not set a limit.  Strangely enough, I have not found anyone overeating on meat yet.  The protein and fat in meat will signal your brain that you are full and satisfied.  Patients will automatically stop eating.  Eating meat also causes the fullness to last longer, because it takes much more time to digest the protein.  I told the patient to eat until they are full.  Because I let my patients eat at any time of the day, patients can just save the leftovers and eat it later if needed.  Do not over eat if you are full already.  If you are the type of person that you have to finish your entire plate, make sure you do not put too much food on your plate in the first place. You can go back for seconds if you are not full.

Concentrate on what you eat and not how much you eat.