With some Economy Fares the maximum combined Linear Length of any two pieces of checked baggage is 273cm/107in but no one piece may exceed a Linear Length of 158cm/62in - in which case the other piece may not exceed a Linear Length of 115cm/45in.
So for a 30 gram serving of protein it would cost about $1 per day. From these two samples of protein powder I found that an acceptable price range for 30 grams of protein from protein powder is between $1 and $1.50 (assuming close to equivalent protein powder quality).
How much protein are in 1 serving? 34% of your daily recommended intake will be met by this specific serving size. This specific food has the same quantity of protein as foods like strawberries, rice noodles and avocados at 18.48 g per 500 calories, which is a fair amount.