Many people make that mistake of thinking that because a little bit of something is good for us, lots must be better. The body works best when vitamins, minerals etc are at a certain level. Too much is just as bad as too little. I've also seen that fallacy used to sell vitamins but it's just not accurate in how our bodies work.
Something higher than the RDA dose =/=mega dosing at unsafe levels. The RDA levels are not maximum tolerance levels, they are minimum subsistence levels.
Also, a larger dose for people with malabsorption is of no use. If they don't absorb the supplements, taking a larger dose will do no good. That's how malabsorption works.
My grandfather is a great example. He couldn't absorb B-12 and no matter how much B-12 he'd take orally would make no difference. He needed it to be injected.
This is true for some individuals with some severe nutrients malabsorption disorders but not for all. It is not true of the broad spectrum general nutrient malabsorption due to AEDS.
It is also a good reason why I find alternatives to pills whenever possible. There are others methods that don't involve needles such as transdermal patches and transdermal liquids. For some people in some cases however the shots are necessary.
I don't think that's what the OP was asking about however. Th OP was asking about general nutrition supplementation, not mega dosing and not any pernicious anemia type of condition.
Thanks for the link to WebMD. It does have a long list of "uses" for it but at the top it says: which means that as of yet there is no evidence to show Moringa does those things.
It also says: so please be careful with it if pregnant.
It says not to eat the roots bark, or flowers if pregnant. Nobody eats that stuff anyway. The leaves and pods are the parts of the moringa tree generally consumed. If one bought a moringa supplement, it would be just the leaves.
"Pregnancy and breast-feeding: It’s LIKELY UNSAFE to use the root, bark or flowers of moringa if you are pregnant."
That is the full WebMD quote about it. ^^^
What was that that was said on another thread about fear mongering through selective presentation of evidence?
There is lots and lots of evidence that it works and is safe consisting of tens of thousands of people eating it for thousands of years on a regular basis.
There is no denying that the vitamins are actually in the plant.
But this is an example of very good scientifically valid information that will never rise to the "gold standard" that western medicine considers to be evidence.
It'a a plant. It grows like crazy. Everywhere but Bernard's backyard, right B? (He's been trying to get some started for a while now).
Since it is so ubiquitous, it is not something that is ever going to be patented and make anyone a lot of money. So nobody funds a double blind...etc study about it.
Has anyone ever done a "gold standard "study on spinach? Probably not. Is it still good for you? Definitely. Moringa is more common than spinach in this part of the world.