My hair was pretty much a casualty of WLS. I lost most of my hair and it hasn't grown back. My surgeon speculates that my hair fell out due to the normal telogen effluvium that comes with drastic weight loss. Then it didn't grow back due to age-related hair loss I would have had anyway (I'm 57). So the surgey sped up the hair loss and I lost it all at once, rather than gradually over a couple of years. But my experience is unusual and I wouldn't take back the 130 pounds I've lost to get my hair back!
Chances are the weight loss will slow and she will level out naturally as she gets closer to a healthy weight but if not she can always work with the nutritionist to add in healthy calories to get to a balance that we call maintenance when she gets to a weight that her and her doctor feel is best. Some people shoot for a weight that is ten to 15 pounds lower than they want because of regain that happens to most of us.
If it's possible to buy only one or two to try, do that. Our tastes tend to change like @kcuster83 mentioned.
Also Bariatric Pal has a store and they have "protein shots" I've never tried them, but I recall Alex saying his favorite is the crisp apple. He mentioned that it's tart. https://store.bariatricpal.com/products/bariatricpal-25g-whey-protein-collagen-power-shots-crisp-apple?variant=31264231325773
This is the entire point of getting weight loss surgery. To help you get healthier. These are your baseline labs. At one of your upcoming post op visit, possibly your one year post op appointment, your doctor will reorder these tests and show you how much improvement you have made after losing weight. It's not about denying you for weight loss surgery.
So glad to hear you are recovering relatively well. That’s great that you have a scale that measures the small losses (less than a pound). Mine is supposed to and it gives me random weights with ounces but I don’t think it’s accurate down to the ounce or I would have seen losses more like yours.
I have huge bald spots all over my head at six months post surgery. I won’t go out in public without a hat or bandana on. My hair was lower-back length and I had to cut it to just above my shoulders so I wouldn’t have SO MUCH HAIR going down the drain and getting in my vacuum. My hair was thinning before (due to probable but unconfirmed PCOS), and I had a really rough go of it between months 2 and 4 where I know I was malnourished. It’s starting to grow back already, but that’s probably my biggest frustration right now is my hair.