5.6.6 Vitamin B
6
(pyridoxine)
Vitamin B
6
participates in amino acid metabolism and is also a catalyst in reactions such as the
production of neurotransmitters. Vitamin B
6
helps to reduce nausea and vomiting. The main
dietary sources are meat (beef, pork and chicken), fish (tuna, salmon), legumes, oats, bananas,
plums, avocado and potatoes. No supplementation is required during pregnancy.
5.6.7 Vitamin B
12
(cyanocobalamin)
Vitamin B
12
is involved in various enzymatic reactions and is required for the synthesis of
methionine and tetrahydrofolate. It is found only in products of animal origin: meat, especially
beef (also liver, which is not recommended during pregnancy), milk, dairy products and fish
(mackerel, herring and tuna). Mussels and oysters contain especially large quantities of this
vitamin. Vitamin B
12
and folic acid are required for both the cognitive and motor development
of the fetus. Vegans and expectant mothers who have undergone gastrointestinal surgery may
suffer from vitamin B
12
deficit and should take supplements; otherwise, no supplementation is
required during pregnancy.
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