You shouldn't eat them raw like he's doing in the video; some people do, and a little bit isn't going to hurt you, but they contain cyclopropenoic fatty acids (CFPAs), which are carcinogenic and have other adverse health effects. On the other hand, high-temperature cooking, such as roasting or frying, denatures CFPAs (starts at 170-180°C, but hotter is better). Low-temperature cooking methods, such as boiling, aren't hot enough. I've never had a chance to try them, but I've heard that roasted they taste like chestnuts.
I have a P. aquatica (origin: Jim West) at work right now that's acting as our office Christmas tree. The poor thing is too tall for the building so I've had to bend the top horizontal
I hesitate to trim it because I've never seen it grow new branches on old wood; I've been contemplating grafting it back smaller the next time it looks ready to do a new flush.
A guy came around the office today with a pollution meter because he'd been getting some complaints about air quality near where he was. Near his desk he measured some pretty bad conditions (esp. VOCs), and he was going around to different places in the building measuring air quality to compare it to. He put it between my P. aquatica and the guanabana next to it (yes, I have a weird choice in "office plants"
), and it measured the cleanest air in the building. While I'm not fully convinced that the plants themselves are the reason, he left convinced that he needs to get some trees for his area
(Actually, come to think about it, the plants could partly be the reason for the better air quality, if only for the fact that humidity levels in the building are horribly low, except near my desk due to the plants... and water vapour creates free hydroxyl ions which decompose VOCs, if I remember the process correctly...)