Skeptics Stack Exchange is a question and answer site for scientific skepticism. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

It is regularly stated that aluminum cooking pans are unhealthy, but I come accross them very often. I see people cooking both alkaline and acid foods in them, scrape them with metal, leave food overnight in them, wrap sandwiches in aluminum foil etc.

How bad is it really?

share|improve this question
Why shall it be unhealthy? – user unknown Aug 17 '11 at 23:24

Here is one reasonably reputable article on the subject: Aluminium & Alzheimer's, ABC Science

The short answer, as far as I can find out, it no, they aren't unhealthy. The article I've referenced gives some history as to where the belief originated.

Here's a quotation of the most relevant part of the article:

Aluminium has had bad press for a long time, mostly beginning around the 1920s. Rudolph Valentino's death in 1926 at the tender age of 31 was blamed on aluminium poisoning from aluminium cookware - but he was actually killed by a perforating stomach ulcer. Howard J. Force, a self-proclaimed "chemist" added momentum to the anti-aluminium movement with pamphlets such as Poisons Formed by Aluminum Cooking Utensils. It was probably not a coincidence that he also sold cookware - stainless steel cookware.

The first scientific "evidence" about aluminium's toxicity appeared in the mid-1970s. People with Alzheimer's Disease have typical changes in the brain that can be seen only with a microscope. They're called "neuro-fibrillary tangles". Various studies found high concentrations of aluminium at autopsy in the brains of people suffering with Alzheimer's Disease - and almost always in the characteristic neuro-fibrillary tangles in the nerves. So, did the aluminium cause Alzheimer's Disease? No. It eventually turned out that the neuro-fibrillary tangles were very "sticky" - and absorbed the aluminium out of the water used to wash them.

As a further references 'Aluminium accumulation in relation to senile plaque and neurofibrillary tangle formation in the brains of patients with renal failure' states:

These data suggest that it is unlikely that aluminium plays any major role in neurofibrillary tangle formation and that its putative role in senile plaque formation is likely to be only part of a complex cascade of changes.

share|improve this answer
thanks, the history part is especially interesting I find. – ufotds Aug 17 '11 at 16:15

If you want to regard studies as evidence, there have been a few worth mentioning which will be linked to below. I tend to err on the side of caution with the irrefutable increase in the incidence of AD in recent decades (the Precautionary Principle). Due to this coupled with concerns raised by various scientific studies of the health effects of aluminum consumption, I would argue the risk is warranted at some level. To me, the argument is similar to the GMO argument. We simply haven't studied extensively enough to definitively prove the issue one way or another (especially given the contradictory studies on both these and many other matters); in other words, we can neither prove nor disprove the concerns raised by preliminary studies. I can find evidence for both sides of this argument (just look at the links in the previous answer). If you're skeptical of the Aluminum industry (or any other industry for that matter), then avoiding aluminum would probably be for the best. I know my kitchen has no aluminum utensils.

share|improve this answer
Welcome to Skeptics! This answer has a number of issues. 1) The question asks how unhealthy aluminum pans are. You answer that you are scared, but not how dangerous they are. 2) You claim with no reference that there is an "irrefutable" increase in AD. Please provide a reference for that showing a higher prevalence (preferably controlled for an aging population and improved diagnoses). You claim there have been insufficient studies - please provide a reference to support that. – Oddthinking Nov 5 '15 at 23:38
Once upon a time we thought that Alzheimers disease was associated with aluminium when Al was found in the brain of victims. But this proved to be an artefact of the analytical technique. There are no clear epidemiological associations known (unless you can have references otherwise.) – matt_black Nov 7 '15 at 0:41
Thanks for the links, one study seems to establish that kitchen gear definitely leaks aluminum into foods and water, whereas the french study seems to shed serious doubts on claims that there is no link between Alzheimer and aluminum. – ufotds Nov 7 '15 at 16:47

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.