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Is it possible to 'live off the sea'














7















I've recently become aware of the american 'survivalist' or 'prepper' phenomenon.



The general idea seems to be that 'something bad' (exactly what seems to vary) is going to happen, civilization will collapse and the survivalists will run to the hills and live off the land.



It occurs to me that the hills are likely to get over crowded fairly quickly.



Rather than living off the land, is it possible to live off the sea instead?



This isn't a question about the mechanics of living afloat (repairing your boat, fixing leaks, keeping the reverse osmosis plant working) it's more a question of can someone gather/hunt/farm all of the nutrients required to be healthy whilst never having to land again? Obviously fish would be a prime source of food, but would that provide everything a human body needs? Is plant matter essential for survival and if so are seaweeds adequate and can they be farmed? Or are their some essential nutrients that can only be gathered from the land?










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  • 1





    Kelp forests and other seaweeds generally are found close to the shore. Are you talking about deep ocean, or near shore? Related to that are you only interested in océans or would a large lake work? You might want to research the Uru people of Peru and Bolivia if lake living is acceptable.

    – Erik
    3 hours ago






  • 2





    Not sure if this falls within the scope of your question, but after TEOTWAWKI, the decay of industrial infrastructure might lead to very polluted coastal waters.

    – TKK
    2 hours ago















7















I've recently become aware of the american 'survivalist' or 'prepper' phenomenon.



The general idea seems to be that 'something bad' (exactly what seems to vary) is going to happen, civilization will collapse and the survivalists will run to the hills and live off the land.



It occurs to me that the hills are likely to get over crowded fairly quickly.



Rather than living off the land, is it possible to live off the sea instead?



This isn't a question about the mechanics of living afloat (repairing your boat, fixing leaks, keeping the reverse osmosis plant working) it's more a question of can someone gather/hunt/farm all of the nutrients required to be healthy whilst never having to land again? Obviously fish would be a prime source of food, but would that provide everything a human body needs? Is plant matter essential for survival and if so are seaweeds adequate and can they be farmed? Or are their some essential nutrients that can only be gathered from the land?










share|improve this question









New contributor



ConanTheGerbil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.














  • 1





    Kelp forests and other seaweeds generally are found close to the shore. Are you talking about deep ocean, or near shore? Related to that are you only interested in océans or would a large lake work? You might want to research the Uru people of Peru and Bolivia if lake living is acceptable.

    – Erik
    3 hours ago






  • 2





    Not sure if this falls within the scope of your question, but after TEOTWAWKI, the decay of industrial infrastructure might lead to very polluted coastal waters.

    – TKK
    2 hours ago













7












7








7








I've recently become aware of the american 'survivalist' or 'prepper' phenomenon.



The general idea seems to be that 'something bad' (exactly what seems to vary) is going to happen, civilization will collapse and the survivalists will run to the hills and live off the land.



It occurs to me that the hills are likely to get over crowded fairly quickly.



Rather than living off the land, is it possible to live off the sea instead?



This isn't a question about the mechanics of living afloat (repairing your boat, fixing leaks, keeping the reverse osmosis plant working) it's more a question of can someone gather/hunt/farm all of the nutrients required to be healthy whilst never having to land again? Obviously fish would be a prime source of food, but would that provide everything a human body needs? Is plant matter essential for survival and if so are seaweeds adequate and can they be farmed? Or are their some essential nutrients that can only be gathered from the land?










share|improve this question









New contributor



ConanTheGerbil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I've recently become aware of the american 'survivalist' or 'prepper' phenomenon.



The general idea seems to be that 'something bad' (exactly what seems to vary) is going to happen, civilization will collapse and the survivalists will run to the hills and live off the land.



It occurs to me that the hills are likely to get over crowded fairly quickly.



Rather than living off the land, is it possible to live off the sea instead?



This isn't a question about the mechanics of living afloat (repairing your boat, fixing leaks, keeping the reverse osmosis plant working) it's more a question of can someone gather/hunt/farm all of the nutrients required to be healthy whilst never having to land again? Obviously fish would be a prime source of food, but would that provide everything a human body needs? Is plant matter essential for survival and if so are seaweeds adequate and can they be farmed? Or are their some essential nutrients that can only be gathered from the land?







survival food health boats sea






share|improve this question









New contributor



ConanTheGerbil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.










share|improve this question









New contributor



ConanTheGerbil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








share|improve this question




share|improve this question








edited 11 hours ago









Ken Graham

7,34812652




7,34812652






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asked 12 hours ago









ConanTheGerbilConanTheGerbil

1361




1361




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Check out our Code of Conduct.









  • 1





    Kelp forests and other seaweeds generally are found close to the shore. Are you talking about deep ocean, or near shore? Related to that are you only interested in océans or would a large lake work? You might want to research the Uru people of Peru and Bolivia if lake living is acceptable.

    – Erik
    3 hours ago






  • 2





    Not sure if this falls within the scope of your question, but after TEOTWAWKI, the decay of industrial infrastructure might lead to very polluted coastal waters.

    – TKK
    2 hours ago












  • 1





    Kelp forests and other seaweeds generally are found close to the shore. Are you talking about deep ocean, or near shore? Related to that are you only interested in océans or would a large lake work? You might want to research the Uru people of Peru and Bolivia if lake living is acceptable.

    – Erik
    3 hours ago






  • 2





    Not sure if this falls within the scope of your question, but after TEOTWAWKI, the decay of industrial infrastructure might lead to very polluted coastal waters.

    – TKK
    2 hours ago







1




1





Kelp forests and other seaweeds generally are found close to the shore. Are you talking about deep ocean, or near shore? Related to that are you only interested in océans or would a large lake work? You might want to research the Uru people of Peru and Bolivia if lake living is acceptable.

– Erik
3 hours ago





Kelp forests and other seaweeds generally are found close to the shore. Are you talking about deep ocean, or near shore? Related to that are you only interested in océans or would a large lake work? You might want to research the Uru people of Peru and Bolivia if lake living is acceptable.

– Erik
3 hours ago




2




2





Not sure if this falls within the scope of your question, but after TEOTWAWKI, the decay of industrial infrastructure might lead to very polluted coastal waters.

– TKK
2 hours ago





Not sure if this falls within the scope of your question, but after TEOTWAWKI, the decay of industrial infrastructure might lead to very polluted coastal waters.

– TKK
2 hours ago










1 Answer
1






active

oldest

votes


















7














Theoretically, it might be possible to survive on meat (including fish) and rainwater alone. In one 1930 experiment, two men survived for a year eating exclusively meat without experiencing any health issues. This indirectly suggests that meat contains all the essential nutrients, but there was also a man fasting for 382 days (drinking only water and getting some potassium supplements) and remaining healthy all the time. This means that from the studies lasting only one year you cannot conclude if meat or fish contain enough essential nutrients to survive for several years.



Meat and fish (for example, salmon) contain proteins and fats, but no carbohydrates - which are not essential nutrients).



The source of carbohydrates can be seaweed, for example, spirulina and kelp. There are also some carbohydrates in clams and other shellfish.



Fish, shellfish and seaweed in combination seem to contain all the essential nutrients, but the question is if you would get them in sufficient amounts from that exact food you would manage to gather. For example, some fish are low in iron, vitamin C, etc.






share|improve this answer




















  • 1





    Adding to the list of potentially missing nutrients: Calcium? (especially for children) There might also be an issue of getting too much nutrients. I'm specifically thinking about salt here, but there may be other issues.

    – Matthieu M.
    4 hours ago











  • The Inuit survive largely on meat and fish and are able to get enough vitamin C to prevent scurvy, though they may still be vitamin C deficient

    – Johnny
    1 hour ago






  • 1





    The man in the 382 day fast was also given vitamin supplements (including vitamin C). Whereas the all-meat diet study did not include those (since one of the main things it was studying was whether vitamin deficiency would occur). So the existence of the fasting study (and lack of scurvy in the same) does not suggest that the time frame of the meat-only study was too short. It is also worth noting that the subject in the fast study lost 270 pounds over the course of the study, so nutrients were provided from fatty tissue being broken down.

    – Ray
    57 mins ago












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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









7














Theoretically, it might be possible to survive on meat (including fish) and rainwater alone. In one 1930 experiment, two men survived for a year eating exclusively meat without experiencing any health issues. This indirectly suggests that meat contains all the essential nutrients, but there was also a man fasting for 382 days (drinking only water and getting some potassium supplements) and remaining healthy all the time. This means that from the studies lasting only one year you cannot conclude if meat or fish contain enough essential nutrients to survive for several years.



Meat and fish (for example, salmon) contain proteins and fats, but no carbohydrates - which are not essential nutrients).



The source of carbohydrates can be seaweed, for example, spirulina and kelp. There are also some carbohydrates in clams and other shellfish.



Fish, shellfish and seaweed in combination seem to contain all the essential nutrients, but the question is if you would get them in sufficient amounts from that exact food you would manage to gather. For example, some fish are low in iron, vitamin C, etc.






share|improve this answer




















  • 1





    Adding to the list of potentially missing nutrients: Calcium? (especially for children) There might also be an issue of getting too much nutrients. I'm specifically thinking about salt here, but there may be other issues.

    – Matthieu M.
    4 hours ago











  • The Inuit survive largely on meat and fish and are able to get enough vitamin C to prevent scurvy, though they may still be vitamin C deficient

    – Johnny
    1 hour ago






  • 1





    The man in the 382 day fast was also given vitamin supplements (including vitamin C). Whereas the all-meat diet study did not include those (since one of the main things it was studying was whether vitamin deficiency would occur). So the existence of the fasting study (and lack of scurvy in the same) does not suggest that the time frame of the meat-only study was too short. It is also worth noting that the subject in the fast study lost 270 pounds over the course of the study, so nutrients were provided from fatty tissue being broken down.

    – Ray
    57 mins ago
















7














Theoretically, it might be possible to survive on meat (including fish) and rainwater alone. In one 1930 experiment, two men survived for a year eating exclusively meat without experiencing any health issues. This indirectly suggests that meat contains all the essential nutrients, but there was also a man fasting for 382 days (drinking only water and getting some potassium supplements) and remaining healthy all the time. This means that from the studies lasting only one year you cannot conclude if meat or fish contain enough essential nutrients to survive for several years.



Meat and fish (for example, salmon) contain proteins and fats, but no carbohydrates - which are not essential nutrients).



The source of carbohydrates can be seaweed, for example, spirulina and kelp. There are also some carbohydrates in clams and other shellfish.



Fish, shellfish and seaweed in combination seem to contain all the essential nutrients, but the question is if you would get them in sufficient amounts from that exact food you would manage to gather. For example, some fish are low in iron, vitamin C, etc.






share|improve this answer




















  • 1





    Adding to the list of potentially missing nutrients: Calcium? (especially for children) There might also be an issue of getting too much nutrients. I'm specifically thinking about salt here, but there may be other issues.

    – Matthieu M.
    4 hours ago











  • The Inuit survive largely on meat and fish and are able to get enough vitamin C to prevent scurvy, though they may still be vitamin C deficient

    – Johnny
    1 hour ago






  • 1





    The man in the 382 day fast was also given vitamin supplements (including vitamin C). Whereas the all-meat diet study did not include those (since one of the main things it was studying was whether vitamin deficiency would occur). So the existence of the fasting study (and lack of scurvy in the same) does not suggest that the time frame of the meat-only study was too short. It is also worth noting that the subject in the fast study lost 270 pounds over the course of the study, so nutrients were provided from fatty tissue being broken down.

    – Ray
    57 mins ago














7












7








7







Theoretically, it might be possible to survive on meat (including fish) and rainwater alone. In one 1930 experiment, two men survived for a year eating exclusively meat without experiencing any health issues. This indirectly suggests that meat contains all the essential nutrients, but there was also a man fasting for 382 days (drinking only water and getting some potassium supplements) and remaining healthy all the time. This means that from the studies lasting only one year you cannot conclude if meat or fish contain enough essential nutrients to survive for several years.



Meat and fish (for example, salmon) contain proteins and fats, but no carbohydrates - which are not essential nutrients).



The source of carbohydrates can be seaweed, for example, spirulina and kelp. There are also some carbohydrates in clams and other shellfish.



Fish, shellfish and seaweed in combination seem to contain all the essential nutrients, but the question is if you would get them in sufficient amounts from that exact food you would manage to gather. For example, some fish are low in iron, vitamin C, etc.






share|improve this answer















Theoretically, it might be possible to survive on meat (including fish) and rainwater alone. In one 1930 experiment, two men survived for a year eating exclusively meat without experiencing any health issues. This indirectly suggests that meat contains all the essential nutrients, but there was also a man fasting for 382 days (drinking only water and getting some potassium supplements) and remaining healthy all the time. This means that from the studies lasting only one year you cannot conclude if meat or fish contain enough essential nutrients to survive for several years.



Meat and fish (for example, salmon) contain proteins and fats, but no carbohydrates - which are not essential nutrients).



The source of carbohydrates can be seaweed, for example, spirulina and kelp. There are also some carbohydrates in clams and other shellfish.



Fish, shellfish and seaweed in combination seem to contain all the essential nutrients, but the question is if you would get them in sufficient amounts from that exact food you would manage to gather. For example, some fish are low in iron, vitamin C, etc.







share|improve this answer














share|improve this answer



share|improve this answer








edited 10 hours ago

























answered 11 hours ago









JanJan

989810




989810







  • 1





    Adding to the list of potentially missing nutrients: Calcium? (especially for children) There might also be an issue of getting too much nutrients. I'm specifically thinking about salt here, but there may be other issues.

    – Matthieu M.
    4 hours ago











  • The Inuit survive largely on meat and fish and are able to get enough vitamin C to prevent scurvy, though they may still be vitamin C deficient

    – Johnny
    1 hour ago






  • 1





    The man in the 382 day fast was also given vitamin supplements (including vitamin C). Whereas the all-meat diet study did not include those (since one of the main things it was studying was whether vitamin deficiency would occur). So the existence of the fasting study (and lack of scurvy in the same) does not suggest that the time frame of the meat-only study was too short. It is also worth noting that the subject in the fast study lost 270 pounds over the course of the study, so nutrients were provided from fatty tissue being broken down.

    – Ray
    57 mins ago













  • 1





    Adding to the list of potentially missing nutrients: Calcium? (especially for children) There might also be an issue of getting too much nutrients. I'm specifically thinking about salt here, but there may be other issues.

    – Matthieu M.
    4 hours ago











  • The Inuit survive largely on meat and fish and are able to get enough vitamin C to prevent scurvy, though they may still be vitamin C deficient

    – Johnny
    1 hour ago






  • 1





    The man in the 382 day fast was also given vitamin supplements (including vitamin C). Whereas the all-meat diet study did not include those (since one of the main things it was studying was whether vitamin deficiency would occur). So the existence of the fasting study (and lack of scurvy in the same) does not suggest that the time frame of the meat-only study was too short. It is also worth noting that the subject in the fast study lost 270 pounds over the course of the study, so nutrients were provided from fatty tissue being broken down.

    – Ray
    57 mins ago








1




1





Adding to the list of potentially missing nutrients: Calcium? (especially for children) There might also be an issue of getting too much nutrients. I'm specifically thinking about salt here, but there may be other issues.

– Matthieu M.
4 hours ago





Adding to the list of potentially missing nutrients: Calcium? (especially for children) There might also be an issue of getting too much nutrients. I'm specifically thinking about salt here, but there may be other issues.

– Matthieu M.
4 hours ago













The Inuit survive largely on meat and fish and are able to get enough vitamin C to prevent scurvy, though they may still be vitamin C deficient

– Johnny
1 hour ago





The Inuit survive largely on meat and fish and are able to get enough vitamin C to prevent scurvy, though they may still be vitamin C deficient

– Johnny
1 hour ago




1




1





The man in the 382 day fast was also given vitamin supplements (including vitamin C). Whereas the all-meat diet study did not include those (since one of the main things it was studying was whether vitamin deficiency would occur). So the existence of the fasting study (and lack of scurvy in the same) does not suggest that the time frame of the meat-only study was too short. It is also worth noting that the subject in the fast study lost 270 pounds over the course of the study, so nutrients were provided from fatty tissue being broken down.

– Ray
57 mins ago






The man in the 382 day fast was also given vitamin supplements (including vitamin C). Whereas the all-meat diet study did not include those (since one of the main things it was studying was whether vitamin deficiency would occur). So the existence of the fasting study (and lack of scurvy in the same) does not suggest that the time frame of the meat-only study was too short. It is also worth noting that the subject in the fast study lost 270 pounds over the course of the study, so nutrients were provided from fatty tissue being broken down.

– Ray
57 mins ago











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