He has not given an explanation for how we can hold the view that fat, low GI foods, or high fiber foods are more satiating than refined carbs like sugar, but that someone's appetite and cravings will have no effect on someone's ability to stick to a diet.
I think this is referring to me. I'm having trouble parsing that sentence, but I think you're asking for me to elaborate on what appears to be a contradiction: that some elements of foods are associated with higher and lower satiety, but that simultaneously it probably doesn't have a big impact on obesity rates? I'm pretty sure I explained that: it has to do with which components, and what quantities.
The macronutrients that are best associated with satiety in the real world are roughage and water, but the effect competes with external factors that influence satiety, such as simply seeing the bottom of the bag or having less variety.
Just to back up a bit: I use the model of 6 macronutrients as follows:
- fats: 9cal/g
- ethanol: 7cal/g
- non-fiber carbs: 4cal/g (eg: sugar)
- protein: 4cal/g
- fiber carbs: 2cal/g
- water: 0cal/g
Primarily, we should look at the 'g' side of the equation. People appear eat mass, not calories or macronutrients. That is: people are primarily satiated by eating X grams, plus or minus a bit. The plus or minus a bit is influenced by macronutrient mix and external cues.
The volumetrics diet is one of the most successful, because it focuses on boosting the grams of fiber carbs and water in a meal. Adjusting sugar/fat/protein percentages just doesn't have very much effect on how many grams we eat, so these intense and time consuming discussions about it are what my dad calls 'tripping over dollars to pick up pennies'.
There is also an interesting thing about protein in particular - satiety appears to have a strong cognitive component. That is: when subjects don't
know the percentage of protein in the meal, the benefit diminishes. Expectation is a strong influencer of satiety, just like deciding we're 'full' when the plate is empty. This finding was groundbreaking in the 1990s, and it has taken a long time for the professionals to incorporate it into weight loss strategies. I don't think it's really resonated with the public, but that's true for most of the external factors. Nobody thinks they're influenced by menu wording or colour choices, either. We all think we're too smart.
So anyway, if I'm eating X grams per day consistently, and shift my food choices to lower calorie density as much as possible, I should see weight loss for awhile, until I level off with a lower BMR. If I'm at a good weight then, I can maintain eating that original number of grams per day. Unfortunately, a lot of people will still be overweight, and the body has to be trained to eat fewer grams per day. This is where stomach surgery or lap bands function, but the stomach can also 'learn' to expect less food, given enough time (stomachs don't actually shrink though.)
Here's the challenge, then: evolution shaped us to seek out calories. So it's not surprising that those low energy density macronutrients - fiber and water - are also not very tasty. My thinking these days is that we need to firstly build up a practical real world recipe base for foods that have dominant water and fiber, and secondly, desensitize the population's assumptions about what percentages of fats, sugars, and proteins constitute a 'real meal' to address the satiety influence from expectations. Salt is another substance that functions by expectation and escalating thresholds, we need to look at that too.
We already know appetite suppressing drugs can cause weight loss because people eat less. The most dramatic weight loss treatment is physically reducing someones appetite with surgery by restricting or cutting away their stomach. For certain it is harder to stick to a diet if you are surrounded by people eating badly, but in the same way it is hard to quit taking heroin if you are surrounded by heroin addicts in your personal life. It is still asinine to suggest that it is just as difficult for someone to stop taking those drugs if you have significantly reduced their cravings for it. We perform surgeries like gastric bypass precisely on the logic that this will dramatically increase their satiety with very little food, if someones appetite and ability to feel satiated had no effect, why on earth would we be performing such invasive risky surgeries?
I think this is consistent with the model I endorse, which is that satiety is not significantly influenced by macronutrient percentages. Contents stretching the stomach wall is a different and well understood and proven mechanism for signalling end of a meal than the hypothetical models that involve GI.
I talked about studies he referred to. They did not study the behavior of obese people.
True, and I appreciate that you can only address the studies that are presented, but please understand that they're provided as examples rather than definitive. Contrary to Taubes, human eating has decades of good studies, it has taken me a decade to read perhaps 10% of them.
[edit for brevity]
If Taubes is wrong then fine, but at least criticise what he is actually saying and not such basic misrepresentations, otherwise it does make it seem like you feel you have to. The word strawmen is so overused I get tired of seeing the word, but that is what we are talking about here.
To be honest, I disagree that these quotes are out of context. Like yourself, I've read his books, many articles, and try to stay current with his foundation's research, and the problem is that he seems to frequently contradict himself. It could be because he says certain things to certain audiences based on what he thinks they will accept.
But he's not really influential in the community, since all he has published are essentially op/ed pieces. Looking forward to his results, just like I look forward to other researchers' results. Lots of pet theories out there. He's just one with publishing power.
Regarding his research: I would be doing a disservice to represent the foundation's work as 'his' research - to his credit he has partnered with Peter Attia, who has appropriate expertise to review the research proposals.