She ought to eat copious amounts of extremely nutritious home-made
from-scratch chicken soup make from whole cut-up well-fed chickens with
skin on, and fresh as possible garden produce. For an extra collagenic
boost, throw in some chickens feet.

Insofar as supplements go, I would point out that vitamin C is crucial
to collagen formation. I would recommend calcium ascorbate in powder
form. It is buffered and easier on the stomach than straight ascorbic
acid.  2 to 4 thousand mgs three to four times a day with food. If it
causes her problems with loose bowels, cut it nack to where she can
tolerate it.

Keep up the B vitamin supplemenst too, they work synergetically with
all other nutrients.

Here is a simple recipe:

One whole chicken cut up. A leg or two would be great.
2 onions
1 or 2 teaspoons salt
1/4 teaspoon pepper
1 tablespoon vinegar
1/2 teaspoon savory

Bring to boil and simmer for an hour or two.

Strain broth out, debone chicken and reserve meat. You might want to
chill the broth and skim the excess fat off.

In the broth, add three potatoes diced, and three carrots diced. Simmer
for 15 minutes. Add meat and simmer till veggies are done. Adjust
seasoning to taste.

TC