However it’s often used in the context of already existing systematic issues. The bunch has already spoiled

Marium webster has a good article about the history of the misappropriation of the phrase

https://www.merriam-webster.com/wordplay/one-bad-apple-spoil-the-barrel-metaphor-phrase

Wow, I’m honored to have shitposted that hard. Needed those words of motivation

Bird flu (specifically H5N1) has notably been spreading quite quickly in cows rights now. It’s been crossing between species much more than it has in the past

1 in 5 samples of pasteurized milk had bird flu virus fragments

It’s worth noting that in countries like US, it’s really only things like beyond burgers and impossible meat that cost more. It doesn’t require eating those for a plant-based diet nor are people typically eating those every meal, is why plant-based diets generally have lower costs

Compared to meat eaters, results show that “true” vegetarians do indeed report lower food expenditures

https://www.sciencedirect.com/science/article/abs/pii/S0921800915301488?via%3Dihub

It found that in high-income countries:

• Vegan diets were the most affordable and reduced food costs by up to one third.

• Vegetarian diets were a close second.

• Flexitarian diets with low amounts of meat and dairy reduced costs by 14%.

• By contrast, pescatarian diets increased costs by up to 2%.

https://www.ox.ac.uk/news/2021-11-11-sustainable-eating-cheaper-and-healthier-oxford-study

For reference for others, they do seem to be getting mass-downvoted on all their recent comments in their post history with plenty being pretty benign:

Link to the article if anyone wants to read it: https://www.vox.com/future-perfect/23817808/pig-farm-investigation-feedback-immunity-feces-intestines

Solar eclipses seem like they probably don’t eat animal products so that’s what I’d go with here

I didn’t even know you could do that in tears of the kingdom

Well, you are essentially paying extra in terms of the time involved, so I suppose it wouldn’t be too surprising that some places might allow you to do things like eat along the way since you can only eat so much in a sitting :)

This is a review study, so it does look at multiple studies over time (Also note that I did not downvote you, it seems that you have accidentally removed your own default upvote. I had that happen to me earlier)

I can quote some of the relevant sections here (not supposed to share the whole thing). These are just some of the problems listed with the metrics there’s quite a lot more but this comment is getting too long

The relative protein content, IAA content, and IAA profile of a given food are required to calculate the DIAAS. The FAO has not prescribed a specific methodology to determine protein content for the DIAAS but acknowledged that nitrogen con- tent can be used to estimate protein content for the PDCAAS [24]. Food-specific nitrogen-to-protein conversion factors have been determined for various foods and can be used for this calculation; however, the FAO does not recommend their use. Instead, it recommends that the generalized nitrogen-to- protein conversion factor be utilized [29]. The generalized factor was set at 6.25 because all proteins were originally estimated to contain 16% nitrogen; however, this varies great- ly between proteins [32]. Importantly, estimating protein content using the general- ized or food-specific factors influences the corresponding PDCAAS and DIAAS. For example, the food-specific factors for almonds and soybeans are 5.20 and 5.61, respectively. As a result, using the generalized factor to calculate their DIAAS yields 16.8% and 10.2% lower values, respectively, than when they are calculated based on their food-specific factors. Conversely, the food-specific factors for skim milk and yogurt are 6.36 and 6.40, respectively [33]. Accordingly, their DIAAS are higher when generalized factors are used. In ad- dition, greater discrepancies exist between conversion factors for plant foods than animal foods, with recent values ranging from 5.3 to 5.8 for grains compared with 5.85–6.15 for milk products [34]. The particular methodology used to calculate protein content therefore influences the DIAAS of plant and animal foods differently, decreasing scores for plant-based sources of protein while increasing scores for animal-based sources of protein. Due to differences in the ranges of food- specific factors, use of the generalized factor may also lead to more inaccurate scores for plant foods than animal foods.

Most literature examining dietary protein consumption and postprandial muscle protein synthesis (MPS) has focused on isolated protein sources, as used in the DIASS method, with limited literature focusing on the influence of whole foods on MPS [31•]. In most settings, protein is not consumed in isolation. Rather, whole foods are consumed with their intrinsic nutrients exhibiting a synergistic and concerted effect [48] and can influence the post-exercise MPS [49–51].

Raw foodstuff is used for most DIAAS modeling, whereas protein-rich plant foods (legumes, grains, etc.) typically un- dergo heat treatment, processing, or both before human con- sumption. Common cooking techniques modify proteins, with heat-treated plant-based proteins demonstrating higher digest- ibility compared with unprocessed sources [30, 52]. One such modification relates to the protease inhibitor trypsin, and pro- cessing treatments have been shown to deactivate as much as 80% of its inhibitory activity in raw flour [52]. Malting and fermentation processes can also increase the digestibility of some proteins, likely by bacterial protein pre-digestion and the lessening of “anti-nutrients” like oxalates, tannins, and phytic acid [31•, 53]. Their effects are significant, both for foods and supplements. The fermentation of grain coupled with other cooking techniques, as is often employed in tradi- tional cooking methods (e.g., sourdough bread), can increase the digestibility of grain protein to a level approaching that of meat [53]. Further, compared with untreated pea seeds, pea protein concentrate demonstrated 12% higher digestibility, matching the protein digestibility of casein [52].

Interestingly enough, there are now non-animal whey milks out there (made via fermentation). It’s worth noting that protein bioavailable numbers are pretty misleading because the way they are done overvalues the availability of animal products and undervalues it for plant-based foods

While multiple strengths characterize the DIAAS, substantial limitations remain, many of which are accentuated in the context of a plant-based dietary pattern. Some of these limitations include a failure to translate differences in nitrogen-to-protein conversion factors between plant- and animal-based foods, limited representation of commonly consumed plant-based foods within the scoring framework, inadequate recognition of the increased digestibility of commonly consumed heat-treated and processed plant-based foods, its formulation centered on fast-growing animal models rather than humans, and a focus on individual isolated foods vs the food matrix. The DIAAS is also increasingly being used out of context where its application could produce erroneous results such as exercise settings. When investigating protein quality, particularly in a plant-based dietary context, the DIAAS should ideally be avoided.

(emphasis mine)

https://link.springer.com/content/pdf/10.1007/s13668-020-00348-8.pdf