Gomesbs;
The whey protein is a given, and the pulsing theory looks good.
I am 63 and a male weighing 200 lbs., so the quantities of protein I use will be greater than she needs.
I found that after 50 or so I began to lose muscle mass more easily even though my workouts remained consistent over the years.
I personally consume 60 – 80 grams of Whey / Casein mix along with another 30 – 40 grams from nonfat skim milk.
This is from the 3 or 4 shakes I have each day. I also use Psyllium Husk in each shake.
I also eat 3 – 4 whole food meals usually consisting of grilled chicken breast and fresh veggies.
I can also recommend Olive Leaf extract with each meal / shake. This prevents viral replication for most strains. I have not had a cold in over 10 years.
I have also had great results from NIAGEN. It is expensive but really seems to boost the energy levels.
After testing NIAGEN I also started using C60 Olive Oil,(experimental and possibly risky) and that added some more benefit.
My next step is Epitalon (experimental and possibly risky) 5mg/day sub Q 20 days on 90 days off, depending on how I feel.
I honestly feel that those of us in our 60s who start right away will be around to see the amazing developments that are on the horizon for 10 – 20 years from now, and benefit from them to the extent that at 100 we will be the same as when we were in our 30s.
Best of luck.