This is another aspect of the catch-22 backlash: without appropriate levels of B12, the effects of FIP may worsen, and because of FIP, your cat's ability to retain adequate reserves of B12 is diminished
first, they convert to acetyl coenzyme A in the presence of ATP-citrate lyase (ACL), which is the first step in endogenous fatty acid synthesis (139), and then, acetyl-CoA carboxylase (ACC) acts to produce malonyl-CoA, thereby initiating DNL
Free Radic Biol Med , 2001
ROS are a necessary defense system to combat microbial respiratory infections (Lambeth, 2004), but oxidative stress and the excessive production of ROS by numerous cells including monocytes and macrophages, neutrophils, as well as pulmonary endothelial and epithelial cells play a major role in the development of ARDS and its complications during COVID-19 infections (Meftahi et al., 2021)
Most patients feel a noticeable energy boost within 2472 hours after receiving their B12 shot