they don't care about if the blood donation is suitable for your body, only that the blood is suitable for donating. There comes a point where this careless wrongdoing leads to you needing a blood transfusion in the end from all the donations you do - thereby negating any benefits of people donating in the first place.
Evidently the competing blood substitutes are Red, and, also, a "Yellow" that is more easily peed out "because more conclude the color of natural urine is yellow", and "the natural urine color being yellow", also was possibly concluded about the Liver "secreting" a substance not truly itself the waste of the Human body, but because of a "chemical reaction", possibly because of the "Sunshine Bread Company", and "What's better than Sliced Bread"?
this video is extremely confusing - due to the lack of data to back all of this up. It doesn't even mention that it uses real cells - from embryos, etc. for this.