Here's the typical curve at Solas your individual response will vary
Journal of Evolutionary Biochemistry and Physiology, 44 , 332-340
Endothelial dysfunction due to selective insulin resistance in vascular endothelium: insights from mechanistic modeling
Cai, J., W.M
Because the biologically active species is the copper complex, a product that is only partially chelated will produce inconsistent and sometimes much weaker results
Combine Diet and Supplements for Optimal Intake Try to get your daily intake of vitamin B12 from food sources, such as liver, beef, shellfish, salmon, tuna, dairy, eggs, fortified cereals, and nutritional yeast