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Concerns with Phthalates and Bisphenols in Food

Dash of Englishness

Space Monkey
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When it comes to plastic, the main hormone disruptors are phthalates and bisphenols. I recently learned that it's the phthalates that make the plastic flexible, and the bisphenols that make it hard. Food is of course the main source of how plastic particles enter our bodies due to their processing, storage and/or cooking. Cosmetics is another source, as phthalates increase absorption into the skin and they increase the retention of scent & colour for makeup & fragrances, etc.

You'll see a lot of articles on the internet about how plastics are bad for you, but it's very hard to get specific facts. What I want to know is questions like these:
  • What exact type of plastics go into making your typical plastic kettle? Is it just one type of bisphenol that is used, or is it a mixture of bisphenols? And why is BPA the most common one I hear of?
  • Is it possible to measure phthalates and bisphenols in water?
  • Once boiled, what level of these compounds is found in the water, when compared to the level of these compounds that would be found in the water if boiling had not take place?
  • How much more of these plastic compounds are measured when comparing water that was boiled and immediately taken out Vs water that was left at boil for several hours?
  • Can I assume that (in a plastic container) with food like yoghurt, you'd have less of these compounds in it than with a proper liquid, like say coke, seeing as the yoghurt at the edge of the container will pretty much remain trapped in place? Know what I mean?
I know common sense might help you take a guess at what the answers to these questions are, but I'd like to see an actual study on it, with figures. That way I could form a proper opinion about it. At the moment, my opinion is to err on the safe side and, within reason, avoid as much as possible.

I don't necessarily mind eating food that's been in contact with plastic, but what I am particularly conscious of is heated food in contact with plastic. The other day my auntie brought over one of those roast chickens that they sell in plastic bags in deli counters. It made things very awkward for me because I didn't want to be rude! To think of that chicken sitting there under the hot lights in the deli all day, with the phthalates leaching into it; no thanks! I feel the same way about people who microwave things in plastic, or cook things in tinfoil.

Another thing is drinking the tea and coffee in the work canteen. I've a proper kettle at home, but if the water for the tea that comes out of those hot water dispenser things, is kept boiled! Now I'm not sure if these are stainless steal containers, or plastic ones. Often you don't even get to see. You don't get to see the inside of it, and even if it's metal you don't know what they line the surfaces of these things with. I recently happened to take a proper look at our coffee machine at home, and it's a plastic storage area in the back of it that holds the boiling water! There's also billions of micro/nanoplastics shed from tea bags when they're steeped.

The other issue is because this isn't something that people have been socially conditioned into thinking is unhealthy, it means that people will look at you like you've two heads if you were to talk about it. Now I understand why people might think you're daft if you believed that microwaved food is dangerous, or something like that; but this is different. Some of my colleagues at work even noticed that I haven't been drinking tea or coffee lately. I just sort of fudged this when it was brought up, because I wouldn't be telling them the reason for it.

When it comes to phthalates and bisphenols being considered a risk, there's this idea that the dose makes the poison. So scientists might do a test at very high doses, and then keep dropping the dose until they don't see any effect in the animal being used, & then they'll assume that anything lower than that level is safe! But if we're continually subjected to lose doses of a whole variety of harmful chemicals every day, then what does that mean? Even though we're almost certain this is the reason male sperm counts fallen 50-60 % over the last 50 years, it's seldom spoken about. What's also happening nowadays with new-born males, is that the anogenital distance is shortening. And this all correlates with the rodent studies using phthalates in food.

What are your thoughts on this? Of course, the less processed foods you eat, the lower your exposure will be. As it happens, eating less processed food is the right way to go anyway, regardless of plastic. I've worked in a cheese factory and a deli counter myself, and it has opened my mind a bit more to all this.

Thanks for reading
 
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Winston

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I cannot answer anything specific regarding your questions, but I can tell you I have recently stopped using delivery food services (Deliveroo, Uber Eats...) because of this.

I think, more broadly, a good rule of thumb is to avoid as much as possible anything that come from the chemical industry. It seems pretty obvious to me that chemistry can only disrupt the proper functionning of biology.
 
the right date makes getting her back home a piece of cake

Train

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On the topic of chemicals, I think something else to keep an eye on is chemicals that tag along during the preparation of meats, dairy, eggs, fruits, etc.

You can have chemicals like pesticides and hormones leech into the final products. Not to mention the potential losses in nutrients from the food due to poor conditions.

Who knows if even the final food products themselves have plastic leech in from the preparation processes too.

I'd keep an eye out for Teflon too. Apparently scratching this material during cooking releases particles.

Microplastics do seem slept on by the population. There was this study a while back where they found microplastics in people's blood. I'd be curious what the long-term ramifications of this will be. Will it turn out to be the lead of our time?

I think there's some trend of people realizing the dangers through BPA-free products though. Also reminded of a study showing fast food packaging containing contaminants that was in mainstream media. But still no mass trend against plastics overall.

There is buzz in the diet communities regarding Polyunsaturated Fats (PUFAs) and avoiding products that contain it like seed oils. PUFA is not as structurally sound as saturated fat and consumption of it can disrupt the metabolism. Hence people avoiding seed oils that are in everything because these contain it in loads. So hard to not get seed oils in processed foods.

But in the spirit of the topic, I'd seen the workarounds are to source raw food from local farms.
 
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Conquistador

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  • What exact type of plastics go into making your typical plastic kettle?
I DID NOT know that was a thing. STAY AWAY! Hot stuff leaches much more.
  • Is it just one type of bisphenol that is used, or is it a mixture of bisphenols?
There are others.
  • And why is BPA the most common one I hear of?
Its toxic effects are better known.

However, its replacement, bisphenol S (BPS), is in fact even worse in many ways.
  • Is it possible to measure phthalates and bisphenols in water?
Of course, but I have no idea what equipment you need. Look it up if you want. Let me know what you find.
  • Once boiled, what level of these compounds is found in the water, when compared to the level of these compounds that would be found in the water if boiling had not take place?
Definitely much more! High temperatures = more leaching.
  • How much more of these plastic compounds are measured when comparing water that was boiled and immediately taken out Vs water that was left at boil for several hours?
Also much more! The same rules apply.
  • Can I assume that (in a plastic container) with food like yoghurt, you'd have less of these compounds in it than with a proper liquid, like say coke, seeing as the yoghurt at the edge of the container will pretty much remain trapped in place? Know what I mean?
It depends on how much each substance causes leaching.
I know common sense might help you take a guess at what the answers to these questions are, but I'd like to see an actual study on it, with figures.
PubMed is your friend!
At the moment, my opinion is to err on the safe side and, within reason, avoid as much as possible.
(y)
or cook things in tinfoil.
What's wrong with tinfoil?
There's also billions of micro/nanoplastics shed from tea bags when they're steeped.
Sources?
The other issue is because this isn't something that people have been socially conditioned into thinking is unhealthy, it means that people will look at you like you've two heads if you were to talk about it.
Maybe where you live. I live in Southern California, where it's more socially acceptable.
Even though we're almost certain this is the reason male sperm counts fallen 50-60 % over the last 50 years
There are probably many reasons for this.
Of course, the less processed foods you eat, the lower your exposure will be.
(y)

The good news, that most people are unaware of, is that a healthy body can eliminate bisphenols and phtalates pretty quickly (not sure about other plastic toxins). There are things you can do to facilitate this of course. For instance, BPA is preferentially eliminated through sweat.

So the main thing is to avoid and minimize continuous exposure.

There are plenty of resources online about how to do this. I would honestly suggest that if you don't have OCD or anything that you allow yourself to get just a little obsessive. Your body will thank you.
 

Chase

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I went on a "no plastics" binge for a while after a spate of "plastics disrupt testosterone and brutalize your sperm" news.

Wouldn't drink water from small plastic bottles, wouldn't eat food that was wrapped in plastic, etc.

Eventually I realized plastics were so ubiquitous it was a pain to avoid them, and that if there was any damage being done to me, it was imperceptible. My testosterone levels are fine, my sperm is great, health is totally fine. I grew up drinking out of a favorite plastic cup and eating out of a favorite plastic bowl every day, played with plastic toys constantly, my pens at school I held all day were plastic, had a plastic lunch box, plastic backpack, and have basically been immersed up to my eyeballs in plastic my whole life. Used to have a girlfriend who'd buy these Pollo Loco microwavable chicken dinners and I'd always be grabbing those things out of her freezer, heating them up in the microwave, still in their plastic buckets with plastic wrap over top.

If there have been effects, they've been small. I don't bother trying to avoid plastics anymore. The only thing I do do is not eat or drink anything contained in heated plastic (since that releases more chemicals than unheated plastic -- which still releases some. Btw, old/damaged and new/undamaged plastics release equal amounts of chemicals, they find).

So, on the one hand -- all the stuff plastics and chemicals in general are said to do to you are disturbing. I read a lot of science news and there's been a lot over the years about all these hormone disruptions and reproductive effects plastics can have.

On the other hand, I can also tell you that based on reading science news, everything in the world is bad for you:

  • Red meat will shorten your lifespan (though this one does actually seem to be true. Read this study on colorectal cancer. The data is sound and the effect is pronounced. There are a lot of studies like this for red meat on a variety of different health problems)
  • White meat is less bad, but still bad
  • Eggs will give you cholesterol
  • Peanuts give you inflammation
  • Strict vegetarian diets lead to nutrient deficiencies and immune problems

What a lot of people don't do I have noticed with science news is read the papers the science news come from. You will notice the effects are almost never quantified in science news reporting. The reason why is because when you quantify the findings, they become much less dramatic.

For instance, here's a really scary science news report about plastics disturbing sperm and egg production in mice:


Pretty terrifying stuff, right?

Here's the chart from the actual paper about the measured impact on sperm and egg production:

plastics-sperm-egg-production.png


Do the math on that and we're talking about a 5% difference for females and a 5% difference for males.

5% is definitely significant. But it's not, like, the difference between fertility and sterility, nor does it come close to accounting for the major collapse in male testosterone levels (or rise in female ones) over the past however many decades.

Is a major lifestyle alteration like totally avoiding plastics necessary to get that juicy 5% boost in sperm quality?

Maybe it is, maybe it isn't. Guess it depends if you have a lot of other problems with your sperm. Also if, like, you're trying to get a whole lotta chicks pregnant right now and need your shooter hitting the mark with as close to 100% accuracy as you can get ;)

Anyway, as with any news, it's always worth digging into the actual numbers behind the scary headlines and sensationalist news reporting to find out how large the effect actually is (or, additionally, to see for yourself whether there might be any methodological flaws with the study that make its claims much shakier).

Chase
 

Dash of Englishness

Space Monkey
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504

Space Monkey
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"Concerns with Phthalates and Bisphenols in Food"



since the advent of penicillin and modern agriculture, the main reasons for premature human death (outside of wars/genocides) have been heart disease and cancer, which are caused by inflammation, which in turn is caused by various factors, such as a bad diet, lack of sleep, and stress, whereby stress is often caused by CONCERNS

so drop this "concerns" shit!
 

Gunwitch

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I seen a guy on a podcast, talking food, digestion etc, was some expert. He said basically what you eat doesn't matter, fat, cholesterol, carbs, nitrates, anti oxidants etc. All just food wizardry from nutrition/diet/youtube industry, unless it's poison or too much calories, not enough, starve or get fat etc, you just eat it, stomach acids turn it into shit and you poop it out. Not gonna get cancer not eating broccoli or cure it eating eggs or whatever.

So can basically guilt yourself about everything you eat, and think you can control things via science you don't understand and peoples advice who haven't looked under a microscope since jr high either. Still die of cancer at 35 as A vegan, or heart attack at 40 as a distance runner. Live to 90 eating bacon eggs and toast for breakfast and whiskey and beer for lunch as a midwest farmer.

Or realize "ya ain't getting off this rock alive so enjoy yourself". Was his take on modern "food science" carcinogens, health or lack of from from what you eat etc.


Gun
 

Dash of Englishness

Space Monkey
space monkey
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I seen a guy on a podcast, talking food, digestion etc, was some expert. He said basically what you eat doesn't matter, fat, cholesterol, carbs, nitrates, anti oxidants etc. All just food wizardry from nutrition/diet/youtube industry, unless it's poison or too much calories, not enough, starve or get fat etc, you just eat it, stomach acids turn it into shit and you poop it out. Not gonna get cancer not eating broccoli or cure it eating eggs or whatever.

So can basically guilt yourself about everything you eat, and think you can control things via science you don't understand and peoples advice who haven't looked under a microscope since jr high either. Still die of cancer at 35 as A vegan, or heart attack at 40 as a distance runner. Live to 90 eating bacon eggs and toast for breakfast and whiskey and beer for lunch as a midwest farmer.

Or realize "ya ain't getting off this rock alive so enjoy yourself". Was his take on modern "food science" carcinogens, health or lack of from from what you eat etc.


Gun
That wasn't Dr Oz by any chance? Well don't believe everything you hear. It sounds like the perfect thing to hear for somebody who needs to rationalise the poor decision they've already made.

If this podcaster really expects people to believe him then he shouldn't need to say the last line of "ya ain't getting off this rock alive so enjoy yourself". If eating is the only way one gets fulfilment out of life then that says enough in itself. My guess is that this podcaster himself is the only person who hasn't looked under a microscope since jr high.
 

Gunwitch

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That wasn't Dr Oz by any chance?
No lol, he's actually THE "eat some blueberries" for everything guy I thought. Or was back in the day, my mom would have him on and he was always "hole in your head, eat some blueberries" it felt like.

Was a guest on Rogan, some scientist guy, Rogan was actually skeptical, he's big on the diet and fitness and all, and of course the guy looked like shit.

I mean we know through the food you put in mouth you can alter appearance/weight, drink yourself to cirrhosis,, go into ketosis with no carbs etc etc etc. I think his point was though that you ain't gonna get cancer from eating a microwave dinner, or cure it eating some blueberries. Whole concept of food guilt and shame in society today. "Oh man I ate at mcdonalds I really messed it up this time" type almost food phobias. More so, mostly his point was there are industries that use those fears as marketing to try to sell you supplements etc, then he had some examples of some supplements having shit in them that made people immediately sick and were recalled and such. Rogans had like 200 doctors on there I can't find the episode. That was the skinny of it though.

I agree with it and on top of his points, it feels to me like it's a lot of desire to control things that aren't really understood even by scientific community. I mean I know people who work out and eat healthy/low cal, look great, and smoke cigarettes. Hell i've been fucking without a rubber for a decade or more and never caught anything fatal. Internet wisdom would say I and the smoker friends would be dead by now. A lot of time this isn't wisdom, it's fear mongering. Dumping a gallon of wine down their throat at dinner every night "i'm paleo and eat non gmo only" don't think it's gonna matter, just sayin.

Old saying a little bit of knowledge can get you in a lot of trouble. That's where I fall on being paranoid about any stuff like this. Can just make you feel guilty about everything you put in your mouth, and see a boogeyman in every sandwich wrapper.

Not saying I know anything or am the smart one here or anything.

In fact am kinda being Vincent from Pulp Fiction I guess "yeah but bacons good" dummie argument lol.


Gun
 

ElChe

Space Monkey
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Oct 12, 2018
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I seen a guy on a podcast, talking food, digestion etc, was some expert. He said basically what you eat doesn't matter, fat, cholesterol, carbs, nitrates, anti oxidants etc. All just food wizardry from nutrition/diet/youtube industry, unless it's poison or too much calories, not enough, starve or get fat etc, you just eat it, stomach acids turn it into shit and you poop it out. Not gonna get cancer not eating broccoli or cure it eating eggs or whatever.

I sort of see where this is coming from, but I do think healthy eating is important (it changes your mood, makes you feel more energized, makes you look better etc). Also if, for example, you compare American diets+obesity rates+life spans… vs… Japanese diets+obesity+life spans… you can see there’s a real effect.

Thing is though, the more detailed you get with healthy eating, the less those details matter.

As you said calories is the biggest factor in healthy eating. Too many calories = weight gain, too little = weight loss.

Macro balance is the next most important thing… but it matters less than calories. And the next thing is micronutrients, and then meal timing, etc. Supplements are a tiny 1% and barely matter at all.

Now when it comes to specific foods like Mcdonalds… there are a ton of tiny reasons these are bad for you.

The way I see it, a lot of it is contextual. Like, it’s not inherently bad that a mcdonalds meal is high in fat. But if you look at most people’s diets (especially American diets)... they are already stuffed with fat. In that context, a mcdonalds meal is pretty bad.

And then you look at how much sodium it has, its saturated fat, calorie count, the fact that most people eat a big cup of soda with it. It adds up to a very unhealthy meal (again, based on the context of what most people eat).


Anyway, I think the problem is that people try to judge things as “completely unhealthy/healthy”. No one thing will make you "healthy", and no one thing will make you "unhealthy".

But a very healthy lifestyle (where you mind your calories/macros/micros/etc) VS a very unhealthy lifestyle... makes a big difference. It's up to the individual how much effort they want to put.

Nobody should judge or guilt themselves tho. Eating healthy is fun.
 
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