Nutrition: Difference between revisions

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{{pbr}}~ take a multi.
{{pbr}}~ take a multi.
{{pbr}}~ dispel misconceptions about absorbability
{{pbr}}~ dispel misconceptions about absorbability
{{pbr}}~ why food lacks these nutrients in the first place: long shelf life dry foods are why we don't have famines in the 'first world' - but this comes with tradeoffs, nutrients lost. But this can be made up for}}
{{pbr}}~ why food lacks these nutrients in the first place: long shelf life dry foods are why we don't have famines in the 'first world' - but this comes with tradeoffs, nutrients lost. But this can be made up for
{{pbr}}~ terminology and why it sucks: RDA should be called "daily requirement". because "recommended daily allowance" is misleading and sounds like "you're allowed to have up to this much, anything more is unhealthy", which is NOT what it means at all. The UL is that upper limit that means that. Whereas the RDA is more of a lower limit, anything below it might be insufficient for some people. Another way to say it: Anything between RDA and UL is safe & healthy for 97% of people. Show the diagram tbh
{{pbr}}~ what about choline? may not be important overall for most people, or if it is then probably don't need the full 550mg/day {{x|which isn't a true RDA - choline has been less studied so they set the target higher than it may need to be, to be conservative. they set a large burden of proof for establishing that a lower intake won't lead to deficiency}}. Maybe some other nutrients in plants can enable the formation of choline without u getting that large intake? Because choline-deficient vegan diets have never been shown to be an issue as long as they provide all the other nutrients}}


===Protein===
===Protein===

Revision as of 17:19, 28 December 2024

This page is going to ruffle a few feathers. There are so many misconceptions about nutrition out there - try to put all that aside when reading this page - try to rebuild an understanding from scratch.

Things that matter

Vitamins & minerals

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Protein

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Essential fats

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The total amount of calories

Protein and essential fats, on their own, are only a small percent of the calories you need. The rest of the calories must be some combination of fats and carbs. The exact ratio doesn't matter as much as some people think - see below.


Things that don't matter


This section is going to cause a lot of controversy, but it needs to be said. Again, try to put any pre-conceived ideas aside, and read the whole page before jumping to conclusions.

Carbs


Exception: For people with diabetes, carbs do matter - be careful. But the following applies to everyone else:

Contrary to popular belief, it doesn't matter whether most of your calories come from carbs or fats. The overall amount of calories are what's important.

"Bad carbs" (i.e. sugar) vs "good carbs"

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Fats


Saturated fat and cholesterol

Not harmful. Not essential either.

Seed oils

Not harmful.


Chemicals


Natural vs artificial flavors

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Preservatives & additives

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Animal-based vs plant-based


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But ethically, it does matter.

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Honorable mentions

Antioxidants

Flavonoids etc. These help prevent cancer to some extent, but not as significantly as the more essential antioxidants Vitamin C and Vitamin E.

Fiber

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FAQ

"WHAT??? You mean junk food is fine??? What about heart disease, type 2 diabetes, cancer, and obesity???"

Obviously there are countless cases of people who get these health problems from an unhealthy diet full of junk food.

But almost every case can be explained by either an excess of calories or a lack of one or more essential nutrients (listed above in "things that matter"). Any studies that control for these factors will say the same thing.

That might sound pedantic, but it actually matters a lot:

Low-quality foods can be part of a healthy diet. People need to know this so they can eat well without spending their whole paycheck on food.


See also