Hello lybrate-user,
It is best to take commercial protein resources when you feel that your diet is deficient of normal amount of protein which your body requires. Firstly, if you do not have any kind of protein abnormalities in your body (ie, deficiency and/or hyper and/or hypo reaction) then you should get your albumin levels checked. Secondly, to start with (not necessarily nestle but all kind of protein supplement powders available in market) start with a minimal dose. Let your body get adapted with it. And then slowly and steadily increase the intake as per your requirement.
Thank you, have a nice day!
Take care, I hope this will be helpful to you.