In reality, I don't think anybody in the US follows the food pyramid religiously. But I do think people (try to) follow the main strokes of what the government tells them is a healthy dietary balance, and so any recommendation to increase their fat/protein intake will result in more meat consumption even if the guidelines doesn't itself proscribe that as the only source.
Do you really observe that in your circles? I've lived in 6 different states, from Maryland to Idaho, and I've never got an impression that many people take any real though or consideration for their health at all. If anything, I'd armchair guestimate something like 10% of adults seem to put any real attention of effort into their health. I feel like late teens to late college year people put more effort in general, but only because they themselves are on the meat market and don't usually have complex lives (kids, careers)
If you go to Western Europe, they're not drinking lots of skim milk, and if you eat things from the bakeries, there's more butter and not as much low quality vegetable oil or sugar. When my French cousins come here, they find lots of the stuff sold here revoltingly sweet.
You know how people like cold pressed extra virgin olive oil? Or avocado oil? Those are "high quality". Industrially refined/deodorized/hexane-extracted soybean, corn, non-high-oleic sunflower/safflower oil, canola tend to be considered to be on the opposite end of the spectrum.
Deodorizing causes the oil to oxidize, as does deep frying, and that makes a variety of nasty byproducts that seem likely to cause systemic inflammation. And from here on HN the other day, "Inflammation now predicts heart disease better than cholesterol" https://www.empirical.health/blog/inflammation-and-heart-hea...
People in this thread are scoffing at RFK saying that beef tallow fries are "healthy", and while I wouldn't go that far, there seems to be good evidence that it's much healthier to deep fry in beef tallow than the soybean oil most switched to in the 90s. Beef tallow is high in saturated fat, which tends to be relatively stable under heat, and very low in polyunsaturated fats, which tend to be the fats that oxidize the worst. Soybean oil, on the other hand, is extremely high in polyunsaturated fat (60% vs 2-4% for beef tallow). And the big problem with commercial deep frying is that the oil is frequently just topped off rather than replaced, so those oxidization byproducts build up over time. More stable fat is really important there.
I also don't know how relevant this is, but soybean frying oil tends to have silicone-based anti-foaming agents mixed in (polydimethylsiloxane is the one I've seen most commonly) - you can find this in the big jugs at Costco if you want to check it out. Silicone generally doesn't seem great to be swallowing - I think it's pretty inert, but it seems likely to me to have mechanical properties that your body's not quite used to dealing with effectively. This is just me being biased about eating something that's pretty obviously not food, though, I haven't seen much on the subject.
Hydrogenated oils are now well known to be bad (trans fats). So Crisco/creamed vegetable shortening, very low quality.
So yeah, there are higher and lower quality oils, especially once they've been degraded via high heat over a long period and oxygen exposure in commercial or industrial frying processes.
And even then this rule is not perfect because of individual genetics, metabolism rates, activity level, percentage of lean mass, etc.
Americans (US citizens) really do eat a lot. What the hell
But here we have the problems with the numbers and why they should only be guidelines. Consumption of protein needs to increase as you get old (into the range we consider for athletes). And basing consumption on body weight is stupid, because telling an obese person they need to eat twice as much protein as a non-obese person is probably wrong.
1. It’s proteins and fats, not just protein. The site specifically calls out avocado as an example.
2. It’s from meat and vegetable sources. Other commenters have mentioned that you get more protein from non-meat sources than you expect.
Case in point: the Mayo Clinic article titled "Are you getting enough protein?"[0]
It claims that protein is only a concern for people who are undereating or on weight loss drugs, yet it cites protein recommendations that many people find challenging to meet (1.1g/kg for active people, more if you're over 40 or doing strength or endurance workouts.) To top it off, it's illustrated with a handful of nuts, which are pretty marginal sources of protein. It's bizarrely mixed messaging.
[0] https://www.mayoclinichealthsystem.org/hometown-health/speak...
I really like this study of a population of highly trained athletes and their diets/protein intake: https://pubmed.ncbi.nlm.nih.gov/27710150/
In that study they eat > 1.2g protein/kg body weight, but 43% of that is "plant sources", meaning grains, legumes, fruits and vegetables. Like one serving of oatmeal is 6g, things you don't think of as "protein" add up and you have to count them. The athletes in that study are Dutch and 19% of their protein intake came from bread.
But what always happens with protein recommendations is that they say "x grams protein/kg bodyweight" but people hear "protein is meat, you are telling me to eat x grams/kg bodyweight of meat." Very few people ever look closely enough at their diet to develop an intuitive sense for counting macros.
Your diet contains many sources of protein lower quality than beans (as in the linked study with high level Dutch athletes getting 19% of their protein from bread), you do need to count those. They do add up and if you don't, you end up assuming you need way more protein than you do.
if I'm eating bread, pasta and other cereals, I may exceed the 1.2g/kg recommendations but the PDCAAS (Protein Digestibility-Corrected Amino Acid Score) of these would make it in truth closer to 0.6g/kg.
Someone else eating mostly meat would get in total 1.2g/kg protein but also 1.2g/kg when PDCAAS is accounted for.
Maybe it's to simplify the calculation to the average user but it feels misleading, you can't know for sure the proportion of cereals in somebody diet.
All of the protein recommendations I've seen were for lean mass. You don't feed fat.
A reasonably close rule of thumb can actually be 1g of protein per cm of height.
Also not accurately represented is that your body absorbs less protein per gram consumed the older you get. (I couldnt find a source with an actual ratio, just recommendations for _more_ as you get older).
When listening to folks like Layne Norton, they have said that surprisingly many people who simply increase their protein inadvertently begin to lose weight due to greater satiety per net calorie. (remember, roughly 20% of protein calories are lost in digesting/absorbing/converting the protein)
yeah both of those people are extreme cases that would break this very crude formula
1.2g/kg * 90kg (~200lbs-lean) = 108g of protein.
each person, on average, in the US would be eating one 16oz steak or 3-5 hamburgers every day.
Even a cup of cooked rice or a slice of bread has several grams of protein.
