The mouse model exhibited a phenotype with a large increase in levels of the enzyme substrate trimethyllysine (TML) and very low carnitine levels
[DOI] [PubMed] [Google Scholar] 130.Stanelle S.T., McLaughlin K.L., Crouse S.F
however, the analyses of the effects of these two events are exploratory due to the small sample sizes and consequent limitation in power
But if you want to look for the symptoms then see this list below Signs of B12 deficiency include: Fatigue or low-energy Hair loss Weight gain Brain fog Depression Numbness/tingling Tongue changes Constipation Heart palpitations Anemia Because many of these symptoms can be masked by a low thyroid many people are tempted to check their serum B12 levels Testing for Vitamin B12 Deficiency: Do you Really Need to
The food sources for phosphatidyl-choline (lecithin) might be eggs, milk, liver, red meat, poultry, shellfish, and fish