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This conclusion was drawn by measuring collagen type I levels produced by fibroblasts in a cell culture following exposure to varying concentrations of AHK

Certain Medical Conditions Some medical conditions, medications or surgeries, such as intestinal surgery, can interfere with the absorption of vitamin B12 in the gut

Also, all vegetarians and vegans should be regularly tested for possible B12 deficiency, but if your doc doesnt know your eating habits you wont be tested

This can happen due to age-related changes in the spine, such as disc wear or disc bulging