289
submitted 11 months ago by pelespirit@sh.itjust.works to c/news@lemmy.world
you are viewing a single comment's thread
view the rest of the comments
[-] JustZ@lemmy.world 5 points 11 months ago

It said it was like 15% of human recommended intake.

[-] Ookami38@sh.itjust.works 2 points 11 months ago

Sorry legit haven't read the article but sounds like you have, so I'll ask for clarity

Would that be the equivalent of a 15% daily recommended dose, as adjusted by weight for a rat, or is it literally 15% of the daily allowance of a human, pumped into the rat? Because the latter is definitely more of what vibe I get from the previous poster.

[-] CO_Chewie@sh.itjust.works 4 points 11 months ago

When a sample of mice were given free access to water dosed with aspartame equivalent to 15 percent of the FDA's recommended maximum daily amount for humans, they generally displayed more anxious behavior in specially designed mood tests.

[-] Ookami38@sh.itjust.works 3 points 11 months ago

Cool, so it's 15% of the RDA for humans, divided by whatever the avg weight difference between a rat and a human is, right? Or similar? That's the best interpretation of that quote, though it is still a bit ambiguous lol

[-] JustZ@lemmy.world 4 points 11 months ago* (last edited 11 months ago)

I read it as the rat equivalent of 15% for humans.

[-] Ookami38@sh.itjust.works 0 points 11 months ago

Yeah, that's what I get now. I would like if they had a more specific rundown of how that number was calculated, and how much water it was in / the rats consumed. May be in the article or study, still haven't actually read it and don't have the time ATM.

[-] Cavemanfreak@lemm.ee 1 points 11 months ago

That quote makes it sound like it's not adjusted by weight. But it also doesn't mention the aspartame to water ratio, or how much of the water that the rats drank.

[-] papertowels@programming.dev 3 points 11 months ago

Here's the relevant sentence in the study:

The FDA recommended maximum DIV for aspartame for humans is 50 mg/kg (33). Based on allometric conversion utilizing pharmacokinetic and body surface area parameters (43), the mouse equivalent of the human DIV is 615 mg/kg/d. Therefore, the male mice received a daily aspartame dose equivalent to 14.0%, 7.0%, and 3.5% of the FDA recommended human DIV, and the females received a dose equivalent to 15.5%, 7.7%, and 3.9% of the human DIV.

It's a lot to unpack, but my interpretation is that it's been adjusted for a rat

[-] Pipoca@lemmy.world 1 points 11 months ago

To translate that into something sensible, the RDA in the US is 50 mg/kg = 110.25 mg/lb. 15% of that is 16.5 mg/lb. So 1653 mg per 100 lbs of bodyweight.

A can of diet coke is about 200 mg of aspartame. So that's a bit over 8 cans of coke per 100 lbs of body weight. Or 1.5 2-liter bottles per 100 lbs.

That's... kinda a lot.

this post was submitted on 25 Dec 2023
289 points (89.6% liked)

News

23422 readers
2610 users here now

Welcome to the News community!

Rules:

1. Be civil


Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban. Do not respond to rule-breaking content; report it and move on.


2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.


Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.


3. No bots, spam or self-promotion.


Only approved bots, which follow the guidelines for bots set by the instance, are allowed.


4. Post titles should be the same as the article used as source.


Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.


5. Only recent news is allowed.


Posts must be news from the most recent 30 days.


6. All posts must be news articles.


No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.


7. No duplicate posts.


If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.


8. Misinformation is prohibited.


Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.


9. No link shorteners.


The auto mod will contact you if a link shortener is detected, please delete your post if they are right.


10. Don't copy entire article in your post body


For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.

founded 2 years ago
MODERATORS