You have 100 trillion cells in your body in total. You have 25 trillion red blood cells in your body, the most abundant variety.
carbon
The most abundant chemical substance in the human body is water. There are a lot of H2O molecules throughout the human body.
Blood vessels are the most abundant structures
Protein.
The most important cations in the human body are sodium, potassium, magnesium, and calcium ions
collagen (:
The second most abundant substance in the human body is proteins. Proteins are essential for various functions in the body, including building and repairing tissues, supporting the immune system, and serving as enzymes and hormones.
The most abundant element in any organic structure, including the human is hydrogen.
Proteins are the second most abundant substance in the human body and are essential for the structure, function, and regulation of all cells. They play a critical role in various biological processes such as growth, repair, and immunity.
magnesium
Magnesium
calcium