Not eating meat was what I think started my problems with CFS. After a few years, I was left with NO b12 after a test. I was so ill with vertigo and so many problems. I would never do it again. If you do this for a long time, the reserves will be used up. Thankfully, you do have reserves to help for a few years.

You have to be SO careful and test b12. Get a quality protein powder to make sure you get the amino acids, iron, zinc, protein since the bioavailabity is reduced. Muscle mass is reduced. Taurine, carnitine, etc can be found in eggs and dairy but not usually enough. I THOUGHT it would be.

Glutathoine is so important also. NAC is good to raise that and whey protein helps it.

Carnitine is also important. You can supplement that also. So many problems come if these are not supplemented. I wish I could do it all again, but now I make sure I include a wide variety of foods and meats. Good you are eating fish for sure. That helps.

Just be careful.