I'm not sure as far as age but the daily intake should be 30 grams per meal, hope this helps....Good Luck
How Much Protein Does A 70 Years Old Man Need Daily To Feel Great, And Energized?
How many grams of protein [DAILY] is needed for a 75 year old man/
Just divide your weight by 2, and you will get a rough idea that how many proteins you need to take in this age. In this age, make sure to take proper diet and proper physical activities.