I am not sure if I have shared this video before, but several times I have asked Rh negatives if they are secretors or non-secretors and I realized other than those on the blood type diet, they didn’t know what it means:
I am not sure if I have shared this video before, but several times I have asked Rh negatives if they are secretors or non-secretors and I realized other than those on the blood type diet, they didn’t know what it means: