Introducing Giga Binding Units (gBU): A Functional Measurement Standard for Immunoglobulin Ingredients

Walk into any supplement retailer or browse online marketplaces for immunoglobulin products, particularly IgG and IgY, and you will notice something striking. Products making similar digestive and immune health claims recommend vastly different daily servings; one product suggests 200mg, another suggests 2,500mg, over 12 times higher. This variation makes it difficult for consumers to evaluate product value, for formulators to select ingredients and establish serving sizes, and for researchers to compare outcomes across studies. For a category valued at more than $5 billion and growing at a CAGR of more than 7%, this is a challenge worth solving.

Other functional ingredient categories have faced similar measurement challenges and solved them by standardizing around the biological function by which they deliver health benefits, rather than mass. Probiotics use colony forming units (CFUs) to quantify viable organisms rather than bacterial mass. Enzymes use activity units (AUs) to quantify catalytic performance, rather than protein quantity. Immunoglobulins require the same approach, yet today the category relies solely on mass-based measurement with no standard that captures the functional benefits these ingredients deliver.