Something could have gone wrong with the test itself , though the lab usually detects it if all their tests get unusual results
The result is sustained circulating B12 levels that keep your animals supported for longer between treatments, making each injection work harder for your operation
If you experience side effects that concern you, discuss them with your GP or practice nurse
Vegetarian sources of B12 include chlorella, nori, nutritional yeast and certain mushrooms, but many vegans and vegetarians have insufficient levels of B12 because its not widely found in plants. According to Mullane, not getting enough B12 can result in issues like anaemia, fatigue and more intense symptoms including shortness of breath, palpitations, pale skin, muscle weakness, numbness and tingling in hands or feet, blurred vision and memory loss
Its often more comfortable and works better for some people