Can your body tell how many calories the food you're eating has?

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Discussion Overview

The discussion revolves around whether the human body can sense the caloric content of food and how this might relate to feelings of nausea after consuming rich, sweet foods like ice cream and protein shakes. Participants explore physiological responses to high-calorie foods, including blood sugar levels and digestion processes.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that the body may estimate caloric value based on food volume, leading to different satiety responses between calorically dense and less dense foods.
  • One participant proposes that rapid increases in blood sugar could be responsible for feelings of nausea after consuming sweet foods.
  • Another participant questions whether the nausea could be due to insulin responses triggered by sweet tastes, suggesting that this might lead to a drop in blood sugar levels before the food is fully digested.
  • Concerns are raised about the nature of nausea experienced after consuming energy-dense foods, with some participants linking it to the physical properties of the food rather than blood sugar levels.
  • Participants share personal experiences of nausea after consuming high-energy foods, indicating variability in individual responses to similar foods.

Areas of Agreement / Disagreement

Participants express differing views on the causes of nausea related to high-calorie foods, with no consensus reached on whether it is primarily due to blood sugar spikes, insulin responses, or the physical characteristics of the food consumed.

Contextual Notes

Participants acknowledge limitations in their understanding of the physiological mechanisms involved, including the complexities of digestion and individual variations in response to food intake.

wasteofo2
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Today I went to an ice-cream shop and got a medium sized cup (maybe 8 oz) of "Cake Batter" ice-cream. It's very very sweet and rich, tasted just like cake batter, and before I ate half of it, I started feeling sick. I'm sure you've all had the feeling before, when you're eating something really sweet, and you don't eat that much, but you just feel like you're about to vomit if you eat anymore. This ice-cream definitely has a huge amount of calories, I knew from the way it tasted it probabally had a bunch of rich cream and butter and stuff, but can your body actually tell that and start feeling sick so you don't overload on calories and get fat?
 
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I don't have the source handy, but I've read a while ago that the body actually estimates the caloric value of food by its volume. That means that when you're hungry, the hunger won't go away as quickly by eating 400 kcals in calorically dense food as by eating the same amount of *energy* in calorically less dense food. That's part of the problem with most kinds of fast food - they're more calorically dense than the average caveman's diet our stomachs and brains are calibrated for, and therefore we need much more of it to make the hunger go away than to fulfill our energy needs.

Getting sick by eating too much ice cream probabaly has a different reason, as far as I can tell.

Does anybody have a reliable source to quote on this one?
 
wasteofo2, the sugar in your blood must have sky-rocketed and made you feel sick.
 
Monique said:
wasteofo2, the sugar in your blood must have sky-rocketed and made you feel sick.
In like 15 or 20 minutes?
 
That's what I was thinking - that would be a pretty fast digestion... I'm not sure, maybe it actually is due to blood sugar skyrocketing - but couldn't it be just the other way around? Sweet tastes in our mouth regulate insulin levels AFAIK. Eating a considerable amount of very sweet food should then result in insulin levels skyrocketing and blood sugar going done - while the additional sugar from food is still in the stomach and not in the blood stream. That should result in nausea, I think...
 
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But Adrian, it was the kind of nausea that made me feel like I shouldn't eat anything else or I'd throw up, wouldn't ridiculously low blood sugar levels give you a feeling like you need to eat immediately?
 
I think it is a very interesting question, since when I drink a high-energy protein drink, I get the same kind of nausea. I too wondered what the underlying physiological mechanism was.

You asked 'in like 15 or 20 minutes', but digestion starts in the stomach and sugar or carbohydrates must be taken up fast if they are in a non-complex form.
 
Hm... interesting. Now that you say it, I do get a bit nauseaous (spelling..? lol) at times after drinking my post-workout shake which is rich in protein and simple sugars. I usually blame it on the stress and pressure on the whole gastrointestinal tract from working out...

How about this though: Maybe the nausea has little to do with the blood sugar. (BTW, what's in your protein drink except protein? If it doesn't contain much carbohydrates, it shouldn't affect blood sugar or insulin levels at all...). Maybe this is a reaction of the stomach to the texture / viscosity / material properties (i.e. the lack of fiber and any "hard parts") of such energy-dense food such as these drinks and that ice cream? Just a thought... I'm really guessing in the dark here, although I hope these are educated guesses :)

"You asked 'in like 15 or 20 minutes', but digestion starts in the stomach and sugar or carbohydrates must be taken up fast if they are in a non-complex form."

Well, carbs are not digested in the stomach. They are quickly absorbed into the bloodstream once they leave it, though (if they're non-complex). What I'm wondering though - would a spike in blood sugar levels cause nausea at all? Heightened awakeness and activity levels, yes, but I'm not so sure about nausea or anything that feels "bad" (unless the spike is really extreme).

I need to check with my friend who has diabetes on this one... or consult google...
 
Adrian said:
What I'm wondering though - would a spike in blood sugar levels cause nausea at all? Heightened awakeness and activity levels, yes, but I'm not so sure about nausea or anything that feels "bad" (unless the spike is really extreme).
I can tell you, that as a kid who still eats copious amounts of candy/pastries whenever they're around, that you will get very sick feeling if you eat too much sweet stuff. In the past when I've eaten cake or cookies instead of a meal, I end up feeling very sick afterwards and ususally have the desire to eat something substantial (meat, vegetables, bland carbohydrates). However, I've never felt sick that quickly.
 
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