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Big Breakfast Alters Appetite, Gut Health

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Re: Big Breakfast Alters Appetite, Gut Health

#31

The abstract begins, "Growing evidence supports early eating to control appetite and energy balance". What does that mean? My unskilled reading of it is that there is recent evidence that eating breakfast helps with weight loss. But I'm confused because there was a 2019 meta-analysis that found that eating breakfast does NOT help with weight loss. https://www.bmj.com/content/364/bmj.l42

It means the replication crisis is alive and well.

Re: Big Breakfast Alters Appetite, Gut Health

#32
post #30

Earlier quoted context omitted.

They used a crossover design, so each subject served as their own control. Not a bad choice for trials like this as you gain a lot of statistical power with fewer participants than a parallel-arm, non-crossover design.

I don't think they used crossover design. There is no evidence in the abstract that they used crossover design. If they used crossover design they should have all participants go through a second trial period where they consume the same diet but with light breakfast and more caloric lunch and dinner. Then they could actually have more insight on the main thesis of their study, i.e. whether bug breakfast alters appeti…

They did. Check out Figure 2 in the paper.

Re: Big Breakfast Alters Appetite, Gut Health

#35

Countries known for big breakfasts: USA, Turkey. Countries known for light or skipped breakfasts: France, Japan, China. I think I'll wait for a more thorough study.

Buddha recommended to his followers a diet which consisted of a breakfast and a second meal at noon if needed. That is, for their health, primary meal early in the day and fasting the remainder. It's interesting that this advice seems fairly supported by science.

Re: Big Breakfast Alters Appetite, Gut Health

#36

Countries known for big breakfasts: USA, Turkey. Countries known for light or skipped breakfasts: France, Japan, China. I think I'll wait for a more thorough study.

This study wasn't big breakfast vs light/no breakfast.

It was high fiber big breakfast vs high protein big breakfast.

(And no, this comment was not written by an LLM).

Re: Big Breakfast Alters Appetite, Gut Health

#38

The abstract begins, "Growing evidence supports early eating to control appetite and energy balance". What does that mean? My unskilled reading of it is that there is recent evidence that eating breakfast helps with weight loss. But I'm confused because there was a 2019 meta-analysis that found that eating breakfast does NOT help with weight loss. https://www.bmj.com/content/364/bmj.l42

You might want to read the rest of the studies - or at least try to no misrepresent before commenting. There are elementary differences in the studies.

Study 1: "What to Eat", Specific Demographics, Primary Clinical Trial, Mechanistic/Physiological Outcome, Conclusion: High-Protein breakfast is superior for suppressing appetite and maintaining satiety, while a High-Fiber breakfast promotes better weight loss and a healthier gut microbiome,

Study 2: Whether to Eat, Broad Demographics, Systematic Review (meta analysis), Broad Clinical Outcomes, Conclusion: eating breakfast increases total daily energy intake compared to skipping it, and that skipping breakfast resulted in slightly greater weight loss.

Re: Big Breakfast Alters Appetite, Gut Health

#39

19 participants.

That was the point I stopped reading.

The number needed for a study to get significant results depends on the strength of the effect it is measuring.

For example if I have a bag full of thousands of coins, pull out 19 at random and flip them sequentially, and they all come out heads I'm going to conclude I have a bag that is overwhelmingly coins that are heavily biased toward coming up heads.

Are you going to say my sample size was too small to support that conclusion?

To see if their sample size was too small you need to at least read the part where they do the math.

Re: Big Breakfast Alters Appetite, Gut Health

#40
post #30

Earlier quoted context omitted.

I don't think they used crossover design. There is no evidence in the abstract that they used crossover design. If they used crossover design they should have all participants go through a second trial period where they consume the same diet but with light breakfast and more caloric lunch and dinner. Then they could actually have more insight on the main thesis of their study, i.e. whether bug breakfast alters appeti…

They did. Check out Figure 2 in the paper.

They did a crossover study on the two diets. Ie the high protein diet and the high fiber diet. They did absolutely no crossover or no control on the headline thesis of their paper. The headline being that big breakfast alters appetite or is somehow good for weight-loss.

This study shows or proves absolutely nothing about advantages or disadvantages of big breakfast or that a big breakfast makes any difference whatsoever.

It only shows that if you are going to have a big breakfast as part of calorie limited diet if you choose a diet with high protein you will lose weight slightly faster but will have slightly worse gut health than if you chose a diet with high fructose.

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