Does Vitamin C as calcium ascorbate contains 'Calcium'?

I take high doses of Vitamin C (2000-3000mg) a day. I can't tolerate ascorbic acid well so I take something that contains Vitamin C as calcium, magnesium, potassium, zinc ascorbates.

The bottle lists 'Calcium (as calcium ascorbate, citrate & carbonate) 105mg - the total intake I take is around 157mg.

I don't want to overload myself with calcium. Does this mean it contains calcium??

Can anybody point me in the direction of info on the best form of Vitamin C please?

thanks as ever!

15 Replies

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  • I can't comment on the calcium issue but I take Solgar vitamin c from the Nutri Centre.

  • Hi, try Nature's Best, they claim to have a gentle Vit C:

    naturesbest.co.uk

    and for info on various ascorbate forms try:

    lpi.oregonstate.edu/ss01/bi...

  • thanks that's useful!

  • All of them are different forms of calcium. You can get dietary calcium from many sources - spinach & green leafy vegetables, milk & dairy products, seafood etc. Calcium citrate is derived from fruit & vegetable sources (notably citrus) calcium carbonate is derived from eggshells, seashells and dark green leafy vegetables and calcium ascorbate is the calcium derived from ascorbic acid/vitamin c.

    Women need about 1,000mg a day, so you are unlikely to be overdoing it on 157mg supplement, depending on your diet.

    This might help:

    mayoclinic.com/health/calci...

  • I take effervescent Vit C 1,000mg. Is this OK? Ging

  • The UK RDA for calcium is 800mg daily.

    The form you are taking in your Vitamin C supplement is BALANCED by the magnesium form also in the supplement.

    The problems with excessive calcium intake occur in people who are magnesium deficient or who don't eat their greens and lack Vitamin K.

    There are online calcium calculators (also magnesium calculators) that allow you to enter the foods you consume and work out if you are getting sufficient calcium (magnesium) If you are worried your are overdosing on calcium this may set your mind at rest.

    You can buy Vitamin C supplements that only contain L-ascorbic-acid. vitamin C not bound up with anything else. It also comes as a powder that you dissolve in water and may work out cheaper.

  • Hi TedHutchinson,

    Thanks for the reply. Yes it also contains magnesium ascorbate. This is what I take iherb.com/Source-Naturals-U...

    I don't know if I am magnesium deficient or not, I asked GP but he said NHS does not test magnesium levels but he is testing calcium levels.

    Unfortunately L-ascorbic-acid makes my tummy very uncomfortable when take them close to my thyroid meds.

    There is a caution in taking calcium supplements within four hours of taking some thyroid medications. Do you know whether calcium ascorbate in Vit C qualifies as a calcium supplement?

    thanks a lot!

  • It is appears we are both wrong! Recommended intake of calcium in the UK for adults is 700mg, (but NHS says OK to ingest up to 1500mg per day)

    food.gov.uk/multimedia/pdfs...

    (page 4)

  • you can also get vit C as magnesium Ascorbate (Biocare do a a powder) which might be gentler on the tummy and teeth than the straight acid.

  • Xanthe, thanks for that! I shall look at that!

    xx

  • Are you on thyroxine or Armour? There is a caution in taking calcium supplements within four hours of taking some thyroid medications. I don't know whether calcium ascorbate qualifies as a calcium supplement though.

  • Hi Heloise,

    I am on Nutri Thyroid and Nutri Adrenals only but will start T3 in couple of weeks.

    I am curious also to find out if calcium ascorbate qualifies as a calcium supplement, perhaps I should post that as a separate question.

  • Hi Heloise,

    I am on Nutri Thyroid and Nutri Adrenals only but will start T3 in couple of weeks.

    I am curious also to find out if calcium ascorbate qualifies as a calcium supplement, perhaps I should post that as a separate question.

  • Just a pointer. If you want to reply to someone directly, you have to click on 'reply to this', otherwise they will not get an email telling them that you have responded.

    Louise

    xx

  • Thanks Louise! will do that!

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