Hacker News Reader

Hemp seed has 36g of protein per 100g and is a lot cheaper and environmentally more sustainable to produce, contains omega acids in the perfect ratio for humans (but dose not have the same bio-availability), dose not have high levels of mercury (that's more of a problem with farmed fish not wild).

View on HN

This seems like one optimal protein source, since we could also squeeze out its oil and use it for diesel fuel. Then, Spirulina, can act as another protein source which can also provide bio-available essential fatty acids.

How do farmed tuna have more mercury than wild harvested? They're both swimming in the same ocean eating the same pilchards.

I'm presuming it's because farmed tuna are fed a diet low in mercury vs. wild tuna eating things that have concentrated mercury over time?

You have it backwards. The farmed has been found to have higher mercury content.

Reply on news.ycombinator.com