@awnlee jawkingLiving in the forest, yet having difficulty sourcing meat? Okay, there's always possible more or less reasonable reasons why in the backstory (including his 'assistance' who may have come with rules), and besides, well, meat is meat, why let it go to waste.
Yup between prions, parasites, infections, hormones, poisons, etc, eating own species meat it a bit risky business, and humans are notorious for bad practices that can spoil their flesh.
But a few select cuts of muscle seem so yummy...
The question becomes, how much your character knows about the risks and what possible misconceptions or superstitions he may harbor, and how much inner conflict you want him have over this, or what consequences to attract.
Speaking of conflict and consequences, a whole other theme may be his considerations and conscience living with the deed done, in light of return to civilization or otherwise.
Actually, the key is not making a habit out of this, so that when he finally meets a cute human girl he doesn't see her just as a piece of fine meat.