Nak, Yes, you’re right, we’re sorry about that! Sometimes the API nutrition calculator can be a little finicky. The collagen peptides add 9g protein to this recipe. The remaining 3g protein are calculated from the matcha powder. However, we’ve noticed a range of protein from different matcha brands (1 teaspoon (2g) of matcha powder can have anywhere from .5 to 1.5g protein), so depending on the brand you use the amount of protein will be slightly different.