Anything is poisonous to the body in high enough doses.
Does the producer of these capsules (apparently Vitacost) specify a maximum dosage? If so, was Jim exceeding this recommendation? Or well under it?
Come on BBC.
Vitacost Green Tea Extract
Green Tea Extract (leaf) standardized to 98% polyphenols (490 mg), 80% catechins (400 mg), 50% epigallocatechin-3P-gallate (EGCG)(250 mg)
Amount Per Serving: 500mg
https://www.vitacost.com/vitacost-green-tea-extract-standard...
"In conclusion, despite of its well known favorable effects, EGCG could paradoxically exhibit nephro-toxic effect in the presence of diabetes"
I chased all this shit until I got sick of it and adopted a whole foods plant based diet. No more added sugar or refined, processed crap. Weight dropped like crazy and I walk around literally euphoric compared to before. Same for my wife. No counting calories, no fad diets, no insane excersize schedule, no supplements other than iodide (seaweed), L-Glutamine, and top grade certified fish oil with vitamin D. Those are universally accepted supplements recognized and used widely in the medical community and are not nesseaary accept it is very expensive and time consuming to acquire and eat the amount of food required to get optimal levels.
Other issues could be caused if the plant supplement contains also different plants, there could be similar plants that the plant collectors could slip in(by mistake or not) (I mean in general I do not know how the green tea is collected) , or the plants could be contaminated with pesticides, so I would avoid supplements if are not recommended by a doctor. As an example my son when he was young he liked carrot juice, so give it to him daily, when we went to the doctor she noticed he had is skin colored and told us to stop, I had no idea that too much carrots can be bad (it sucks that we are told that X is good for you but not that if you take too much X you will get ill)
Well in your son’s case, it’s not harmful per se according to Wikipedia, Carotenosis is harmless - you will just look orange.
Vitamin A is a classic: Too little, and you get blind and your feet start bleeding when you walk. Too much, and you get blind and your feet start bleeding when you walk.
since one egg yolk contains around 30% of the Vitamin A you need for a day, i limit my daily consumption to 3.
> What is it about green tea supplements that might cause harm at certain doses to some people? Scientists do not know for certain. Because green tea has been drunk for thousands of years, supplements consisting of its concentrated form are regulated in the US and Europe as foods, not medicines. That means that specific safety testing has not been required, so the scientific picture of how green tea supplements might affect our health is incomplete.
Dose makes the poison, some people are capable of handling more, and some less.
Tea, among other things, has caffeine in it, and enough caffeine will kill you, but other than in pill form, you’ll likely not manage to get to the threshold because you’ll start vomiting way earlier.
It’s possible that there are other compounds harmful at high concentration. And of course, it’s not unthinkable that some of his pills were contaminated with something more dangerous.
But the dosage alone in some cases may explain enough of the damage.
Caffeine toxicity can happen much earlier, but it's mostly concerning in combination with other substances. Caff on its own ... it's really, really hard to get to a dangerous dose inadvertently.
If the substance is pure, and the dosage is correctly labeled. Neither of which is especially common for nutritional supplements.
The key to this article is the line, "catechin doses at or above 800mg may pose health concerns." Pop over to amazon and look at one of the top results for green tea extract: https://www.amazon.com/NOW-Green-Tea-Extract-Capsules/dp/B00... A single pill is 160mg.
The proven use is green tea... Not concentrated catechin powder. Good luck getting your hands on that without ingesting heavy metals or other toxins. All of this comes up when researching green tea.
You expect journalists actually doing their job in 2018? Get with the times.