Recent comments in /f/dataisbeautiful

GladstoneBrookes t1_j40imsy wrote

What are your thoughts on trials like this one that find when you look at the protein-related outcome we presumably care most about, muscle growth and strength, there are no significant differences between vegans and omnivores undergoing resistance training when matched for protein?

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GladstoneBrookes t1_j40ibsv wrote

Some plant proteins do have a complete amino acid profile (soy, quinoa, buckwheat, hemp seeds, etc.), but for the ones that don't it's not that complicated getting sufficient quantities of all amino acids from plant foods. All plant foods contain all essential amino acids, but often in a lower proportion than one's dietary requirements (hence the 'incomplete' classification) - grains tend to have lysine as a limiting amino acid, while for beans it's methionine, so a grain + legume combination will get you a good amino acid profile.

Also copying a previous comment on bioavailability and quality of plant proteins:

> Plant protein sources do typically have lower PDCAAS and DIAAS scores, which is where the "low bioavailability" idea comes from, but this difference is almost entirely due to limiting amino acids rather than them not being digestible or absorbed. (Note that limiting amino acids does not mean the essential amino acid is not present, all plant foods contain all amino acids, it just means that the amino acid is present in a lower proportion than a person's dietary requirements.) If you're eating a variety of plant protein sources (literally just more than one really; something like rice and beans has a perfect or near-perfect PDCAAS score, for example) then this really shouldn't be an issue for you.

> In addition, when you look at the data on the outcome we're interested in (muscle mass gain) rather than getting bogged down in amino acid composition, postprandial muscle protein synthesis, measures of fecal/ileal digestibility, etc. plant proteins appear to be non-inferior to animal protein sources. This randomised controlled trial compared omnivores supplementing with whey protein to vegans supplementing with soy protein powder and found that when they were matched for protein (1.6 g/kg/day) and underwent resistance training, there was no difference in the improvements of muscle mass or strength.

> This review is really interesting and summarises the plant protein quality issue, and also covers the environmental aspects of different protein sources. Also this review covering the broader health and environmental issues of animal vs. plant proteins.

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sup2_0 t1_j40h45e wrote

I was specifically speaking in the context of muscle protein synthesis, not the bare minimum required to be healthy. The daily required amount is not enough to become “swole”, this can be seen in the daily value recommendation of 50g, anyone who lifts can tell you that is not enough. I am not claiming it to be impossible to be swole and vegan but you need to combine protein sources to get all amino acids required for muscle protein synthesis. There is a reason many popular vegan protein powders are a combination of sources (pea and rice normally). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6723444/

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Morczubel t1_j40g1v3 wrote

I dont like your tone, lady. I am open to rational discussion, but Your condescending tone is a warning that I will be wasting my time.

As far as I am concerned, You can get enough complete protein to live on a vegan diet. But I was referring to the vegan sausage specifically. To explain simply: the Amino acid profile is not as balanced as with meat, as atleast one amino acid (depending on plant it is derived from) is lacking compared to the rest. But still, I really wanna see the macros on your sausage; 'more protein per energy than chicken' seems really good, considering chicken breast is around a 80 protein/20 fat/0 carbs split already! But even in this case, from a nutrition standpoint, I'd stick to chicken breast, due to the amount of processing the sausage probably went through.

I dont trust nutritionists, especially not the publically outspoken ones. Nutritional science has a long history of public misinformation to the point of deception, lobbying and conflict of interest. I try to only rely on the information put out there by primary papers, whose methodology I find sound after reading them (so overwhelmingly no epidemiological studies to begin with) and find to have no conflict of interest in terms of funding especially (which might be utopian).

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throwawayatwork30 t1_j40djud wrote

> You are not likely to consume 2KG of yogurt to get your daily 200g of protein.

Watch me.

No seriously, I eat 500g of low fat plain yoghurt with whey protein powder a day and might be upping that even. Tastes good, is filling, low calories and high in protein.

But you also don't need 200g of protein unless you're already quite the unit. Around 150 will do and is probably even more than necessary for most beginner to intermediate lifters.

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marriedacarrot t1_j408270 wrote

Please share the medical journal sources that explain why it's not perfectly safe. I've been eating lots of seitan over the last 25 years and, while I feel great, I may be racing to an early grave and not realize it! My health depends on your insights!

Also eager to learn why, contrary to every reputable nutritionist's input, I can't actually get high quality and complete protein through a diverse diet containing beans, legumes, grains, and vegetables. Must be a wild conspiracy in the medical community.

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penguindev OP t1_j407gu8 wrote

Yeah, there are a lot of delays, provisional data, etc.... it's not real time by any stretch of the imagination, according to each country's systems. I just left the data as is.

As you said, I think it's enough to see some interesting trends. But it's not as good as looking at a smaller age band in a smaller area with more consistent data collection rules.

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