toxicity Flashcards
the most toxic vitamins are
D & A
are carotenoids teratogenic
no
which type of A leads to toxicity
preformed - retinol
early s/s A toxicity
headaches, nausea, vomiting
enlarged liver, hyperlipidaemia
joint pain
skin scaling, hair loss, excessive dryness
longterm A toxicity
liver damage bone damage vomiting haemorrhage coma death
more than 3300 mpg/day while pregnant =
birth defects
Tolerable upper intake A
3300 mcg/day adults (11,000 iu)
Thiamin toxicity
Non-toxic
is riboflavin toxic
no
is niacin toxic
no
is pantothenic acid toxic
no
^10g/day pantothenic acid may cause
diarrhoea,
histamine
joint sensitivity
is pyridoxine toxic
yes - 500mg/day = severe neurological effects
at what levels could pyridoxine suppress lactation
^150mg/day
what could longterm B6 & B12 cause
rosacea
is endogenously-produced D toxic (sunlight)
no
s/s D toxicity
soft tissue calcification
high BP
liver failure
TUL D
4000iu/day
what would 70,000iu/day D do
kill you - liver destroyed
is E toxic
no one of safest
v high levels of E could
thin blood too much or be pro-oxidant
which form of K should you not take and why
K3 - interferes with absorption of glutathione
K toxic
only K3, 1 & 2 fine
