Il caffè inibisce l'assorbimento del ferro? Quali sono gli effetti di avere troppo ferro?

42 Risposte a “Il caffè inibisce l'assorbimento del ferro? Quali sono gli effetti di avere troppo ferro?”

1. Don't stay awake for too long, don't go to bed
   I'll make a cup of coffee for your head
   It'll get you up and going out of bed

2. So what's the best time to drink coffee? I usually drink it after lunch but I also read that it's not good in the morning. And I don't wanna drink it late in the day

3. Verry interesting. Thanks for the Video. Might be interessting to see the difference between heme iron and iron on the negative effects

4. Dr. Gregor, could you please comment on iron deficiency related insomnia and restless leg syndrome?

5. I appreciate all of your videos… Excellent

6. dude. #facts on the infant coffee drinkers.

7. Woah

8. Love to hear this. I am a vegan and drink two mugs of coffee every morning.

9. Where is the cutoff for Ferritin? How much is too much?

10. That's so fascinating! Thank you for sharing <3

11. A Balanced Diet is getting harder and tougher to achieve the more data I learn.
    However the alternative is worse.

12. Next study: "'The effects of reducing alcohol intake in toddlers by 50% per day' In this study, we asked a group of toddlers to reduce their alcoholic intake from the national average of 3 drinks per day to just 1-2…"

13. Dont forget that Turmric has a positive effect on reactivating programmed cell death of cancer cells…

14. For background on iron regulation, see the video Risk Associated with Iron Supplements. https://nutritionfacts.org/video/risk-associated-with-iron-supplements/

15. Been following the daily dozen for years and had to be hospitalized with a profound case of iron-deficient anemia. Still struggling with keeping up levels. Now I'm adding tons of pumpkin seeds to my smoothies that contain lots of high vitamin C fruits.

16. Worrying that turmeric may lower iron absorption. I have turmeric with one meal per day. Is there any more info on this?

17. What about yerba mate?

18. Upping your magnesium isn't a bad idea if you love caffeine.

19. I don't consume heme iron (the often dangerous kind our bodies have a hard time releasing) anyway but I also always happen to be eating citrus fruit (the most common local fruit by far to me) every time I drink tea or coffee with food so I probably don't have this iron absorption issue with the coffee or tea

20. 💕

21. Very good to tackle this important subject. Thanks a lot. I have two questions:- 1. could you state the situation for someone on a whole food fully plant based diet, feeling fine, and haemoglobin in the normal range of a regular fasting blood test which I think does not measure ferritin levels? Should such a person have these beverages after meals? Or should they get ferritin levels checked in a separate specific blood test?
    2. Did I understand right: at the same meal, the iron blocking effect of coffee could be cancelled by the absorbtion enhancing effect of an orange? If yes, that would suit me well indeed. Thank you.

22. I guess one question I would have is the blocking of iron positive in vegans who don't consume any heme iron or is it just really good for omnivores who do.

23. I am very glad you covered this – I have hereditary haemochrotosis (AKA the Celtic Curse), which means my body absorbs too much iron. I was suffering from lots of random symptoms until I did a DNA test.

    I can get sluggish, low energy blood sugar issues, concentration issues etc. It's horrible.

    I will be drinking strong black tea after a meal from now on!

24. Less iron is good thing

25. My kids are hyper enough without giving them coffee.

26. Really interesting studies! Thanks for making the video.

27. Unfortunately for me, being a woman of child bearing age and being vegan – led me to iron deficiency… with terrible symptoms… I take my supplement with vitamin C every morning and only eat drink coffee two hours after …

28. I don't know if this is your kind of topic, but I would like a tutorial on iron homeostasis in middle age human males that work out several times per week…

29. Is there a difference in iron absorption between full caffeine and decaffeinated tea or coffee?

30. You should make a video on how iron absorption increases when your levels are low and decreases when levels are high, as it adds to confusion of bio-availability of plant sources of iron.

31. Um…what about the source of the iron? I didn't hear you mention whether the studies considered people's diets and if they were getting in heme iron from animals or iron from plants.

    I regularly am over 400% the RDA just from eating whole plants, but maybe my absorption is regulated by my spice, tea, and coffee intake. But none of my iron is coming from meat, dairy or eggs.

    I would think that if any iron was the issue then wouldn't the traditional Okinawan diet have had lots of problems due to iron? They used to eat so many greens. But even if they did have issues, I'll take living to 100 even if issues with high iron stores are there. Better than dying in the mid 70s like the average american.

32. Doesn't iron at a certain amount in the blood have a negative effect on the levels of free testosterone in men? As I've heard, it increases tne hormone SHBG which attaches 
    to the circulating free testosterone thereby diminishing its effects on the male body. This occurs even if the clinically measured level of total testosterone is considered 
    to be shown in the high range

33. Do you have a video on Coffee interfering with absorbing vitamin D?

34. Does hibiscus tea also have that efect on iron absorption or is it only green tea?

35. Coffee is understandable. But what is "tea"? As in, what tea, what do you mean by "tea"?

36. One key thing I learned about iron from a recent Plant Chompers video is we need to avoid heme iron (found mostly in animal foods) as much as possible, since our bodies are unable to regulate its uptake, unlike with non-heme iron from plants. To put it another way: if you're at risk of iron overload, skip the meat and eat iron-rich plant foods instead. It might just do the trick without having to resort to coffee and tea consumption to lower your levels.

37. Does coffee inhibit the absorption of B12? Does coffee cause calcium leaching from the bones? Is coffee acidifying? Does coffee causes dehidration?

38. What types of diet were consumed in these studies? Would the risk of iron overload be the same in a meat vs vegetarian vs plant-based diets? It would be useful to establish these ranges for each.

39. I stopped taking turmeric in morning with breakfast a few months back and started to take turmeric only at night 2 or more hours after meal for my knee and to avoid iron deficiency anaemia. Glad to hear that Dr Greger advising the same.

40. Something I learned a while ago is that heme iron in animal flesh is harder for the body to regulate. In other words we absorb too much iron from animal flesh because the body can't regulate it but when we eat plants the body can limit the amount of iron we absorb if it's too much. This in my opinion is what gives rise to the myth that plant iron is less bio-available. The truth is plant iron is better for us because the body can choose to absorb what it needs and to not absorb too much. Therefore in my opinion coffee is a good option for animal eaters because it can help to prevent iron overload but for plant only eaters we probably should drink our coffee (and other iron blocking foods) away from our meals.

41. 4:30 blocks iron absobtion
    0:09

42. You should also mention the studies on coffee and tea showing that waiting 1 hour after a meal reduce the inhibitory effect by half or more

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