OxygenNumber (FTC requires less than 20). Many companies have a stricter requirement such as 10 or 8. Canada and the USA-FTC are both considering a new regulation of 10 or less.
The drug increases the number of red cells in the blood, enhancing oxygen uptake by 10 percent.
这种药增加血液里的红细胞数量，将氧气吸收量提高百分之十。
《柯林斯英汉双解大词典》
3
Proteins are long chains of building blocks called amino acids, the specific number and arrangement of which makes each protein—whether it makes up your hair or carries oxygen in your blood—unique.