Vitamin B12 Deficiencies Vitamin B12 is necessary for patients with a low serum level of vitamin B12 because they take particular medications or because they suffer from: Pernicious anemia Gastrointestinal or autoimmune disorders Alcoholism Patients may also have low levels of vitamin B12 if they have had bariatric surgery, are strict vegetarians, or have used antacids or proton pump inhibitors for a prolonged period
Dolcet-Sanjuan R, Claveria E, Camprub A, Estan V, Calvet C (1996) Micropropagation of walnut trees ( Juglans regia L.) and response to arbuscular mycorrhizal inoculation
A study of workers (n=117) found that the average peak nighttime melatonin levels for day workers was 15.4 ng/mg creating/hr, and the average peak melatonin for night shift workers was almost 50% less (10.9 ng/mg).[ref] Other sources point to the differences in melatonin due to age
They are widely available throughout the year, but their peak season runs from June through October, which is the best season to scout farmers markets and health food stores for fresh, tender, organic beets