Require diagnosis and monitoring: Some conditions (like high blood pressure, diabetes, or bacterial infections) need a professional diagnosis and ongoing monitoring
[1] Those who cannot digest or absorb B12 as a result of inherited genetics or damage to the stomach and small intestine require more than can be absorbed from sublingual supplementation
10.1016/j.ejphar.2014.01.046 [DOI] [PubMed] [Google Scholar] Duzel A., Vlainic J., Antunovic M., Malekinusic D., Vrdoljak B., Samara M., et al
The decreased thiosulfate concentration seems to be associated with formation of a thiosulfate/hydroxocobalamin complex, because hydroxocobalamin can form a complex with thiosulfate
NIH: National Heart, Lung, and Blood Institute [Learn More in MedlinePlus] B Vitamins The B vitamins are: B1 (thiamine) B2 (riboflavin) B3 (niacin) B5 (pantothenic acid) B6 B7 (biotin) B12 Folic acid These vitamins help the process your body uses to get or make energy from the food you eat
Furthermore, professional laboratories often prefer compounds developed according to controlled scientific standards and advanced quality assurance systems