The study points to increased fat-burning activity in lower-protein diets, and from there connects those diets to lower body fat and better aging.

This isn't a new result.. carrying excess bodyfat is bad, we've known this conclusively for decades.

The increased use of bodyfat for energy is also expected (if you aren't overeating). Your body has 2 fuels cells can use, glucose and ketones. Glucose is easy, and this is the primary pathway. If you eat carbs, your body converts them to glucose and feeds that to your brain, muscles, etc.

If you aren't eating enough, your body breaks down stored glycogen in your muscles to get glucose. Once those reserves are gone, your body will switch to converting fat stores into ketones. This can be a rather unpleasant switch for a few days until you adjust.

However, there is another pathway. If you are eating significant amounts of protein, the amino acids will be used for gluconeogenesis (literally: "new glucose creation") by your liver - turning the excess protein in your diet into glucose for your cells to use for energy.

So, if you are eating a lot of protein and otherwise not overeating calories and carbs, your body will turn that protein into glucose rather than scavenging bodyfat into ketones. Eating less protein (and more fats) would promote the fat-burning pathway and lower bodyfat overall.

The study is solid, confirms the general consensus understanding of metabolism. The reporting is trash. Don't avoid protein. But also don't assume 10 g/lb is doing anything to help you build muscle or lose weight - after a certain point, it's just energy.

Well, alright, this is not as annoying as I thought it was going to be. Why? Because I'm on dialysis, and people on dialysis have to eat more protein. I struggle to meet my goals. In fact, I do not meet my goals. Which is irritating.

But I'm also trying to lose weight so I can be considered for a transplant, trying to stay within the limited liquid restrictions, trying to eat enough protein but limit potassium which more protein triggers, limit phosphorous.... there's...... several other things. It's very annoying, especially when I need to cook everything I eat from scratch but sheer fatigue means I'm unable to do so.

Bleh.

So I just needed to vent about that in relation to this study. heh

Conversely, upping my protein intake at the suggestion of my doctor has led to me being significantly healthier in my late 40s than I was in my 30s

this makes sense. I have not been on, because its a pita, cron but have followed the studies. A study showed just restricting methionine in mice without the calorie restriction showed the effect and a further study showed glycine supplementation (glycine helps the body get rid of excess methionine) also did. Now vegans would be something like the methionine elimination group because its high in muscle meat and bone broth bros would be like the glycine supplementation as there is a lot of that in broth.

I'm going to guess it's overeating in general. Protein as a proxy for calories. Undereating does extend life, that gets proven over and over. And yeah, too much protein is hard on your kidneys.

But I would bet money that a person is better off being more active, so that they burn off the calories they eat, or fasting sometimes and eating less overall.

Just holding calories steady and reducing protein doesn't seem better. Because the other places calories can come from are carbohydrates and fats, and it's not healthy to eat too much of those either. Therefore I think it probably just means don't overeat or even do undereat.

Oh great, first salad and now meat.

Man cannot live on bread alone.

Oh no, RFK Jr is wrong?

There sure has been a lot of protein fear-mongering lately. No, you're not eating too much protein. No, you're not getting lead poisoning from protein powder. No, it's not damaging your kidneys or whatever this week's claim is.

Updating the recommended daily intake of protein to 0.8-1g/kg was the only thing RFK was almost correct about. Though that amount also comes with the recommendation of including resistance training in your exercise routine, which is far more important for aging than just protein alone. Conveniently the new dietary guidelines failed to mention that part.

This part in particular:

Lamming reviewed the effect of reducing protein in many body processes. One of the processes involves a hormone called FGF21.

"There's an increase in a hormone called FGF21 that promotes energy expenditure [when protein intake is reduced]," Lamming said. "It essentially increases thermogenesis in your adipose tissue, so you don't just store fat, but actually burn it as fuel."

stinks of someone wanting to get in on a peptide or hormone treatment.

Exercise. Eat protein. Try to get most of it from whole plant sources.

I doubt protein is the problem. It's almost always animal protein that's the problem

Beans and nuts and seitan are all super healthy

The next time you're at a restaurant and they ask what protein you want, tell them beans.

I am not a mouse, insect, ... You cannot generalize diet from cross studies like this. Different species have different abilities to process things