What percentage of blood volume does blood plasma make up in the body?

Blood plasma makes up a significant portion of total blood volume in the body, generally accounting for over 50%. Plasma is the liquid component of blood, which also includes water, electrolytes, nutrients, hormones, and proteins. Its primary role is to transport these substances throughout the body, helping to maintain blood pressure and regulate body temperature, among other functions.

While blood plasma does not reach absurdly high percentages like 70% or 90%, it is indeed more than half of blood volume, validating that over 50% is an accurate representation. Understanding the composition of blood, including the role of plasma, is crucial for personal trainers and health professionals, as it emphasizes the importance of hydration and nutrient transport in overall health and performance.