Alice says, "Yes, cooking in a cast iron skillet can add significant amounts of iron to your food and into your body. In addition to eating more iron-rich foods like meats, beans, and spinach, cooking in a cast iron pot is an easy way to boost your iron intake."
(Source: https://goaskalice.columbia.edu/answered-questions/does-cooking-cast-iron-pots-and-pans-add-iron-our-food)
Another source adds, Research shows "the use of iron pots is a cheap and sustainable way of providing a population with a sufficient iron supply.”This is good news for those who often don’t get enough iron in their diet, like vegetarians, and for those who don’t want to add another supplement to their regimen.
(Source: https://universityhealthnews.com/daily/energy/use-cast-iron-cookware-as-an-iron-deficiency-treatment/)
Cooking with cast iron pots is a good way to get more iron, but there are some risks to consider. Young children shouldn't be fed food cooked in cast iron because it can cause iron toxicity in their tiny bodies. Cast iron might be a great way for vegans to get enough iron in their diets, but not the best cooking method for people who eat a lot of meats and other iron rich foods. Too much iron isn't a good thing.
(Source: https://www.livestrong.com/article/535938-can-too-much-vitamin-e-cause-iron-deficiency/?ajax=1&is=1)
2. Is there a deficiency that could cause or contribute to the fingernails being peppered with white spots?
Punctate Leukonychia is the clinical term for white spots on the finger nails. There are two subcategories: True and Apparent. True punctate leukonychia are spots that do not disappear when pressure is applied to the nail surface. If the spots vanish, it is apparent punctate leukonychia and affects the nail bed rather than the fingernail itself.
Causes of white spots include: trauma, drugs, poisoning, heredity (rare) and systemic illness (also rare). Deficiencies in iron or zinc are listed as possible causes of leukonychia. Another possible cause is protein deficiency. Considering that I was raised a vegan, it is possible that one or all of these deficiencies contributed to the white spots on my nails that went away when I stopped being vegan.
Source: https://www.medicalnewstoday.com/articles/317493.php
3. Insulin delivers glucose to the cells of the body with help from the trace mineral Chromium. Is it easy to get enough Chromium as a vegan?
It is very easy to get enough Chromium because a person doesn't need a lot of it. The new USDA daily value that's coming out is quite low at only 35 mcg, but females need even less; only about 25 mcg. It's also found in a lot of different kinds of food including grains, fruits and vegetables.
If worried about chromium deficiency, consider this: a chromium deficiency often presents as signs and symptoms of diabetes.
https://ods.od.nih.gov/factsheets/Chromium-HealthProfessional/
4. Does refrigerator-filtered water contain Fluoride? My tap water isn't drinkable because of high levels of minerals in it, so I use softened, filtered water. If I never drink water that contains Fluoride, am I in danger?
I read information listed in several sources which concluded that most filters in refrigerators do not remove small compounds such as fluoride from drinking water. There are only three known ways to remove the fluoride: reverse osmosis, activated alumina filters and distillation. Fluoride is added to water to protect bones and teeth of the human body from decay. A lack of fluoride is dangerous, as is an excess of fluoride.
https://www.clearchoicewaterfilters.com.au/do-water-filters-remove-fluoride/
5. Can someone get stones (gallstones, kidney stones, etc) from taking supplements?
I wasn't able to find an article stating that scientists can rule out all supplements in stone formation. However I did find an article suggesting that calcium supplements actually help prevent stones from forming.(1)
The Number One cause of kidney stone formation is dehydration. The best way to prevent kidney stones is to simply drink plenty of water and, in severe cases, avoid certain kinds of foods that can contribute to the problem.(2)
Sources:
1. https://www.medicalnewstoday.com/articles/154193.php
2. https://www.health.harvard.edu/blog/5-steps-for-preventing-kidney-stones-201310046721
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