Text 15267, 81 rader
Skriven 2007-05-11 19:48:00 av JOAN MACDIARMID (1:123/140)
     Kommentar till en text av MICHAEL LOO
Ärende: 441 vitamin A
=====================
 Hi, Michael,

 JW> I didn't know dog liver could be poisonously high in vitamin A before.

 Eskimo sled dogs can, if they have been fed a diet high
 in saltwater fish. Vitamin A is fat-soluble and can
 build up to a high concentration in the liver.

 CS> slice meaning well).  I thought that book said Vitamin D though.
 CS> Could have been I recall it wrong?  Or are there other things that
 CS> can concentrate in the liver to provide an overdose?
 ML> somehow i doubt that vitamin D is/was the one in question... firstly,
 ML> D is needed so we can absorb and use calcium... secondly, our bodies
 ML> manufacture D from sunlight...

 Actually, I just read an article mentioning that
 Vitamin D can also be toxic in too-high chronic
 doses. D, like A, is fat-soluble and can accumulate
 in the body. The water soluble ones like B's and C
 can be flushed more easily from the system if
 there is more present than the body needs.

 ML> It's vitamin A, one of the substances we need where the tolerance
 ML> is low and the need is high. The RDA is 3000 units a day, and the
 ML> tolerable intake is 10000 units a day, which is the amount in
 ML> about 2/3 of a serving of chicken liver or 1/3 of a serving of
 ML> beef liver! I guess the government wants to hedge its bets here.
 ML> What this means to me is that on occasion I have had 8 or more
 ML> times the "tolerable" daily intake. Never noticed any oddities
 ML> from this ingestion though.

 I think the keyword here is "daily"! If you dined on livers
 or took too many Vitamin A supplements every day, the
 excess would be retained until a taxic level was reached.
 As it is, you get your super-shot of A every so often,
 but in between times the body has a chance to dissolve
 it back out of the fatty tissues and use it. In other words,
 it is toxic in chronic overdoses only, but rarely acutely
 toxic as with Carol's example of the small child getting a
 whopping overdose for his small size.

MMMMM----- Recipe via Meal-Master (tm) v8.05

      Title: Goose Liver Hungarian Style (Magyaros Libamaj)
 Categories: Poultry, Liver, Main dish, Hungarian
      Yield: 6 Servings

  1 1/4 lb Goose liver [J: or other
           -poultry liver] (60 dkg)
    1/4 c  Flour (50 mL) or as needed
      2 ea Strips bacon, diced
      1 ea Onion, diced
     11 oz Green peppers, sliced
           -(30 dkg)
      5 oz Tomatoes (15 dkg)
      1 ea Salt & pepper to taste
      1 t  Paprika (5 mL)
      1 ea Clove garlic, minced
           -or crushed
      1 ds Marjoram, to taste

  I made rough conversions from metric (retaining the metrics where
  specified, and estimated several quantities based on my own
  experience in order to conform to Meal-Master format, so use your own
  judgement as based on the actual text of the recipe card:
     "Chop coarsely 60 dkg goose liver. Dip the pieces in flour and
  brown them. Make a stew with a little smoked bacon, 1 diced onion, 30
  dkg of sliced green peppers and 15 dkg of tomatoes. Season with salt,
  pepper, red paprika, a little garlic and marjoram. Add the browned
  liver to the stew and simmer until cooked. Serve with noodles or
  boiled potatoes with butter and parsley."

  By Mihaly Schmaus, on a recipe card in Hungarian with German and
  English translations, given me by a Hungarian friend. Typed for you
  by Joan MacDiarmid.

MMMMM
 Joan MacDiarmid
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