About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.
This is actually not correct. Of the "simple" vitamins, only A, D, E, and K can pose a problem when you have too much. The reason for this is that they are fat-soluble and will be retained in your body for longer periods of time. If you consume too much then the amounts of these vitamins can reach toxic levels.
Other vitamins, such as vitamin C are water soluble and will simply be expelled from the body as waste; you cannot overdose on vitamin C (though it is often acidic and may cause some sort of urinary tract infection... but not because it is a vitamin.)
Experience: Cell Biology, Confocal Microscopy, Developmental Biology, Evolutionary Biology, Genetics, Genomics, Physiology
Yes you can get spirulina online. I've tried a few places and different health stores around London but I've found it easier to shop online, You can get spirulina powder, tablets and capsules - be careful with the tablets though as it's better to find a brand that don't use fillers or agents that tend to be used to give the tablet it shape.
I prefer taking the capsules over the powder and can recommend [link removed as it broke the rules of the forum] who are a good brand in the UK - I think their stuff is all natural and have used their online store a few times now.
Hope that helps! It's great stuff by the way - I've been taking it for a few years now and it really gives an energy boost all day and I use it to help with my running so I hope it works for you as it certainly works for me!
Last edited by MrMistery on Wed Mar 03, 2010 10:11 pm, edited 1 time in total.
Reason: spam removed
I have read that 3g spirulina powder contains 100% of the RDA of vitamin A.
As I take around 8g a day, is this safe for me to take this much vitamin A on a long-term basis?
Also is Beta-Carotene the same as vitamin A? Or are they different?
I take the Spirulina primarily as a source of tryptophan, to counteract insomnia caused by low night-time serotonin (which causes a problem known as Night-Eating-Syndrome).
It has been working great and also seems to make me more energetic and happy.
I have read that spirulina works in the same way on the brain as SSRI's (selective-serotonin-reuptake-inhibitors). If that's true, are there any possible negative long-term effects to consider? eg possible permanent changes to brain-chemistry, or a big 'crash' if I stop taking it?
In all truth I have felt great since taking spirulina and am just wondering if it's safe to feel this good!
Many thanks for any help...
no, it's definitely not safe to take like 300% of vitamin A's RDA, because it's soluble in fats and thus is not excreted from your body, but rather stored in your adipose tissues.
And beta-caroten is provitamin A. By it's cleavage is the vit A produced.
Cis or trans? That's what matters.
But, you have to be careful on wasting something excessively through your kidney. Vitamin C is water soluble, so it is excreted in your urine. Furthermore, the acidic property of vitamin C can affect your kidney function. Some people with high uric acid are asked not to consume vitamin C because its acidic property will hinder uric acid excretion through kidney.
So make sure that you dont overdose vitamin C. Take high dose of Vitamin C only if you are in the need of it, like in a terrible weather condition, or after-sick condition where your immune system are weak.
Thanks for the info Jackbean!
That makes sense...
I'm just wondering though, how do the manufacturers get away with recommending 8 grams at day on the side of the packet?
Also a lot of spirulina promoting websites say 10-15g a day is fine and any amount under 40g a day is safe to take.
Have they all got it horribly wrong or is there something else I'm not considering - for instance whether the full amount of beta-carotene is absorbable by the body or not?
I ask because I'm loath to cut down on the spirulina as it has helped in a lot of areas of my life. I'm not exactly in love with the idea of turning yellow though!
B-carotene is absorbed about ten to twenty percent in the body, so that is one reason people can eat it more than the active form of the vitamin A. Also, it seems that less B-carotene is converted into vitamin A if the body already has a lot of the vitamin stored.
However, excessive intake of B-carotene can have similar harmful effects as overdose of vitamin A. Also, B-carotene is stored in the liver, where it may reserve so much "storage space" that some other fat-soluble vitamins, such as vitamin D, cannot be stored anymore.
So, the same goes with beta-carotene as with other fat-soluble vitamins: too much is too much.
I'm not sure what is the maximum safe daily intake, though, but considering the absorption rates given it is likely to be many times the amount of vitamin A, probably at least 5 to 10x, or more.
I know that spiriluna have many health benefits but in some forums/sites people are saying that spiriluna may have some nasty "side-effects"
Like this : http://www.thefreelibrary.com/Acute+rhabdomyolysis+caused+by+Spirulina+(Arthrospira+platensis).-a0184613207
and : http://www.informaworld.com/smpp/content~db=all~content=a792014772~frm=abslink
Just wondering is that bullshit or is it true that in some cases spiriluna may be even dangerous?
When you want to know if a claimed health aid is actually backed by science, the best web site to visit is http://www.quackwatch.org
On spirulina, go to : http://www.quackwatch.org/01QuackeryRel ... algae.html
While spirulina appears to be a pretty safe material, quckwatch also reports that many of the health claims made for it have been tested and prove to be pure bunkum. Read the reference.
While spirulina contains a number of useful nutrients, they are also available in quantities fully sufficient to meet our daily requirements in a wide variety of other foods, at a price way, way lower than buying spirulina. It is called eating a balanced diet!
General conclusion : spirulina is a scam to make money.
@skeptic: apparently some people choose to spend a lot of money on spirulina than to chew and swallow vegetables. Oh yes, the latter could be the hardest moment for human carnivores.
My friend doesnt eat vegetables, she avoids any vegetables exist. She take some of pills like this...algae pills, but i dont think that her pill cost much since she never complain about algae runs her pocket dry lol
Yes spirulina is good for health it is full of vitamins and nutrients, great if you are low on energy. I take it every day. Only drawback it smells like fish food, (but it is fed to fish). Also wheatgrass is as good, maybe even better but is more expensive.
Facts on Spirulina
The richest source of proteins, it provides 18 out of 22 amino acids the body needs.
Its range of B-Vitamins strengthens the immune system and builds resistance. Its natural beta carotene (pro Vitamin A) helps maintain normal and healthy eyesight.
It provides iron in a form that is easily absorbed. It helps maintain an optimum level of hemoglobin in the blood.
It is the best natural source for antioxidants like carotenoids, vitamin E, zinc and selenium that help fight against free radicals and also slow down the ageing process.
Being the richest vegetarian source of vitamin B-12, it helps reduce physical and mental stress.
GLA in Sunova Spirulina prevents the formation of cholesterol, keeps the heart healthy and checks the onset of degenerative diseases like arthritis and diabetes. It also balances the various hormonal functions to improve energy utilisation and all-round health.
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