If you are an active person, chances are you do not need a protein supplement and using one will be counterproductive because of the extra calories (remember, 1 gram of protein provides as many kilocalories as 1 gram of sugar!). Athletes and vegetarians are special populations that may require supplements.
Amortization expense is a non-cash expense. Therefore, like all non-cash expenses, it will be added to the net income when drafting an indirect cash flow statement. The same applies to depreciation of physical assets, as well other non-cash expenditures, such as increases in payables and accumulated interest expenses.
As the name suggests, this is earnings excluding expenses from depreciation, amortization, interest, and. taxes (earnings + ITDA), in the order they usually appear on the income statement, up to down. It's the operating income. with expenses for depreciation and amortization backed out.