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).
Men and women protein intake range based on ideal body weight: 1  Minimum Daily Protein Requirement: W.H.O. recommends 0.45 grams of protein per kilogram of ideal body weight per day. 2  Maximum Daily Protein Requirement: US RDA recommends 0.8 grams of protein per kilogram of ideal body weight per day. The UK Department of Health and Social Security is approximately the same. If you are currently doing endurance training your daily protein requirement increases to 1 to 1.2 grams per kilogram of ideal body weight per day.