Yes. Had a hard time finding a good figure that shows exactly what I said, but this one is close:
From: [PDF] The major elemental abundance differences between life, the oceans and the Sun | Semantic Scholar
As we can see, the elemental abundance of H, C, N, O, and numerous other elements essential to the human body, pretty closely matches the abundance in the sun. Also of note are Calcium, Chlorine, Potassium, Sodium etc. Afaik dying and massive main sequence stars are primarily powered by the CNO cycle, implying those elements would also be among the most abundant in their cores.