The ideal temperature range is 2C to 8C (36F to 46F)
However, this changed a lot when New York passed new laws in 2024
In adipose models, reduced NNMT activity has been linked with smaller adipocyte size and diminished fat depots, suggesting a potential role for this inhibitor in fat mass modulation under research conditions
Plasma markers of disrupted gut permeability in severe COVID-19 patients
For teams that do not need a broader metabolic format, this size offers a practical and controlled option
Medical conditions affecting absorption warrant particular attention : Pernicious anaemia : an autoimmune condition destroying gastric parietal cells, requiring lifelong B12 injections Gastrointestinal surgery : particularly gastric bypass, gastrectomy, or terminal ileum resection Inflammatory bowel disease : Crohn's disease affecting the terminal ileum impairs absorption Coeliac disease : untreated disease damages the small intestine, reducing B12 uptake Medication use : long-term metformin therapy (MHRA safety alert) or nitrous oxide exposure Symptoms suggesting possible B12 deficiency include : persistent fatigue, weakness, paraesthesia (pins and needles) in hands or feet, glossitis (sore, red tongue), mood changes, memory problems, or unexplained anaemia