You "won't be able" to tell your mother. Why? Is is a one strike and you're killed kind of household?
I think what you mean is you don't WANT to tell your mother, because you are afraid of the yelling , raised eyebrows and interrogation she will give you.
My suggestion on that- grow a pair and stand up for yourself. YOu will have to face people in life at some point.
Why, also, do you mention protein? It is in most foods. LIterally, you can eat too much protein from cereal , yogurt, beans, brown rice, granola and a normal amount of peanut butter and bread. WHy not also mention selenium, copper, iron, folate, phosphorus and the other minerals necessary to live?
Get educated about this, it does not sound as though you have received much so far.
Processed junk food like MAggi noodles with chicken, um.. no. Chicken flavouring has chicken fat. Please.