I always thought raw fish was filled with parasites and worms, which was why 'raw' fish is always flash frozen first. I'd imagine in a situation where the chances of dehydration are so high, risking food poisoning would be life or death.
However humans can’t live on fish alone for 3 months without serious health effects. Hopefully he gets that looked into.
You got a source for that?
From what I could find, people generally seem to agree that you can survive a really long time on fish alone, with the biggest issues being the lack of vitamin-c.
It's not healthy to only eat fish, and much less so raw fish, but 3 months shouldn't be a serious health risk.
Nutritionists don't recommend fish more than 4 servings per week. The main reasons are as follows:
The high oil content has increased chances of causing upset stomach when consumed for long periods of time.
Fish are great for Omega-3 but also high in Omega-6. Consumption of high levels of fish can cause liver and heart disease. This reason is why some contestants pn the TV show "Alone" stop eating a high fish diet.
Ocean fish have increased levels of mercury and microplastics.
I think you're thinking of rabbits. Rapid meat is too lean for humans to survive off of it, there isn't enough fat in it. Fish does not have that problem they have high levels of omega-3 fatty acids and other oils.
You cannot live off of rabbit as your only protein. You can live off of fish as your only protein, but that's not what's being discussed.
A diet that is 100% fish can be toxic to humans. Both Omega-3 and Omega-6 are nessessary for humans but in high quantities they are also linked in liver and heart disease. Nutritionist and health professionals recommend no more than 3 to 4 servings of fish a week.
Ocean fish are also very high in mercury and microplastics.
Not all parasites cause severe food poisoning or make you sick immediately. They depend on your survival for their life cycle. When they make you sick depends on the parasites life cycle. He and Bella both probably could benefit from treatment for parasites.