A standard blood test can measure serum vitamin B12 levels
This inter-bacterial relationship exposes the protective potential of beneficial microbes to combat pathogens through iron sequestration
Vitamin B12 is found exclusively in animal foods or foods fortified with this vitamin, such as: Meat and chicken: especially organ meat and red meat like beef Fish and seafood: especially clams, sardines, tuna, trout, and salmon Dairy: including milk, cheese, and yogurt Eggs: especially egg yolk Fortified foods: breakfast cereal, nutritional yeast, as well as some mock meats or plant milks Supplements, which are widely available in stores and online, are another way to meet your daily requirements
The PlexusDx Precision Peptide Genetic Test ($99 add-on after your first month) analyzes GLP1R (rs6923761), GIPR (rs1800437), and MC4R (rs17782313) variants that relate to GLP-1 and related signaling pathways