Depending on your results, and consultation, you may be prescribed Vitamin B12 booster injections
Int J Food Sci Technol 58(12):67616774 Nakamura K, Shinozuka K, Yoshikawa N (2015) Anti-cancer and antimetastatic effects of cordycepin, an active component of Cordyceps sinensis
observing the depletion of H 2 O 2 in accordance with a drop in absorbance at 240 nm was used to measure CAT activity in the supernatant
doi: 10.2146/ajhp050459 48 SimonsenLHolstJJDeaconCF
Chem Biol Interact 111112:114
Good sources of vitamin E for your dog are brain, heart, liver, tongue, kidneys, eggs, Atlantic salmon, rainbow trout, mackerel and herring