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BTD Forums  /  Live Right 4 Your Type  /  Arsenic Levels in Fish
Posted by: C_Sharp, Sunday, December 4, 2011, 2:03am
I have increased the amount of fish in my diet.

This apparently has increased the amount of arsenic in my diet, which results in adverse health consequences for me.

I would like to reduce the amount of arsenic in my diet.

To do this, I need more specific information on concentrations of organic and inorganic arsenic in various fish species and brands of fish.  

I was hoping someone could point me to measurements of arsenic in various fish.

I would also be interested in concentrations of arsenic in other foods.  
Posted by: Lola, Sunday, December 4, 2011, 4:51am; Reply: 1
none the less remember the Alamo!! ;)

might certain levels of arsenic or cyanide etc have an hormesis effect?

like Resveratrol is a hormetin.
Posted by: Lloyd, Sunday, December 4, 2011, 1:14pm; Reply: 2
A couple quotes, may be of some interest for a more complete reading, various things.

Quoted Text
    Food. With the exceptions of seafood, and animal and poultry
    offal, the concentration of arsenic in food appears to be generally
    <0.25 mg/kg. The actual concentrations determined depend upon the
    limits of determination of the method of analysis and the competence
    of the analyst. With the exceptions mentioned above recent information
    (Ministry of Agriculture, Fisheries and Food, 1982) indicates that the
    concentration of arsenic in food prepared for human consumption is
    commonly <0.02 mg/kg. Plant foods may be contaminated by the
    deposition of atmospheric arsenic emitted by industry (Hislop et al.,
    1982; Ministry of Agriculture, Fisheries and Food, 1982) or through
    the use of arsenical pesticides, such as lead arsenate (Crecelius,

Quoted Text


                           Estimated     Mean arsenic    Estimated mean
          Food group     weight eaten    concentration    daily intake
                           (kg/day)         (mg/kg)           (µg)

    1. Cereals               0.23            <0.02             <5
    2. Meat                  0.15            <0.03             <5
    3. Fish                  0.02             2.71             54
    4. Fats                  0.08            <0.02             <2
    5. Fruits/sugars         0.17            <0.02             <3
    6. Root vegetables       0.18            <0.02             <4
    7. Other vegetables      0.11            <0.02             <2
    8. Beverages             0.12            <0.005            <3
    9. Milk                  0.40            <0.01             <4

    Total                    1.46                             <81
         The most significant source of dietary arsenic is fish (including
    shellfish). In the United Kingdom fish forms 2% of the average diet by
    weight but accounts for about 75% of its arsenic content.
Posted by: Lloyd, Sunday, December 4, 2011, 1:19pm; Reply: 3
It looks as though the locale may be the most important factor.

Also there seems to be a difference between organic and inorganic arsenic compounds to effect.
Posted by: yvonneb, Thursday, January 26, 2012, 7:33pm; Reply: 4
Just a thought....

Would arsenic accumulate in fish like mercury?
If so, then fish that is not a 'tooth fish' should have lower levels of arsenic, as should sardines which are caught quite young I believe...the toxin won't have had enough time to accumulate.

There is a guy on the forum that seems to know a lot about fish...san j- maybe he'll have an input here  :)
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