I don't know about that but mitochondria can and are modulated by a variety of factors and of course, they include dietary components.

Mitochondrial Modulators: The Defender https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9953029/ This paper refers to '61 mitochondrial modulators which are able to protect the mitochondria from toxic insults and/or improve mitochondrial function.'

That sounds rather dangerous. Free mitochondria provoke quite intense inflammatory reactions.

I’m not saying there’s nothing to see there, but if there’s anything it’s not obvious.

Sure I bet you could find someone to inject you with mitochondria…