I would eat larger meals and snack between meals if possible. You need to eat almost twice as much food (atleast if you were a man). I think males need more food, my wife seems to gain weight despite eating a lot less than I do.
I would examine the teff bread recipe, making fresh almond butter (after roasting and soaking it the almonds), maybe some beans, kefir, yogurt, pumpkin, etc. Flax, hemp, chia, millet are a few other examples of some good foods. There’s a lot out there, you just need to go find it and try it out.
Oat bran and more buckwheat are also worth mentioning.
Try to aim for 3-4 course meals with a snack between meals.
I am happy to hear you are feeling a little bit better with the liver cleansing and there is a lot more you can do. I would examine something like super milk thistle x by integrative thereaputics. Acupuncture, liver detox tea’s, etc. There are a ton of herbs that can help.