I was looking for foods high in magnesium and I stumbled into Calrose rice. One source said 3000% for a quarter cup which is rediculous must be mistake but there is no other source that talks about magnesium content.

So I assume it has probably never been measured. Does anybody know?

  • Can you link the source of where you got the 3000% value ?
    – Max
    Aug 4, 2020 at 19:48
  • 1
    3000% of what? Aug 4, 2020 at 20:42
  • @wumpus I asked the administrator of the website and he emailed me back and said it was a mistake , thanked me for bringing it to his attention and he will delete it. Sorry for all the confusion. Next time I will be more careful what I choose to believe. Lesson learned.
    – Sedumjoy
    Aug 5, 2020 at 20:55
  • 1
    @sedumjoy You did the right thing: ask when a confusing statement presents itself. Aug 6, 2020 at 19:43

1 Answer 1


This shows that 1 cup of cooked brown rice contains 80mg of magnesium. and white rice contains 50mg.

The wikipedia for brown rice show that for 100g of raw rice it contains 143mg of magnesium, and for white rice it's about 127mg.

The wikipedia page for calrose rice does not display nutritional information.

I would imagine it is similar to regular white rice or it would be stated, especially if it was 3000% of the base value (or about 3810mg) which would be very high.

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