1

votes

Chewing food: mouth open or closed?

Answered on August 19, 2014
Created December 12, 2011 at 2:31 PM

It's clear which is regarded as polite in contemporary neolithic western society. But which is paleo?

98bf2ca7f8778c79cd3f6c962011cfdc

(24286)

on September 07, 2013
at 01:28 AM

I just bet you will. Yeah, I was glutenized last night so clearly I'm not in my right mind. Plus it's really cold here in Nashville so I think my brain has shut down a bit. I need a pop tart in the worse way right now.

7841848bd0c27c64353c583fb7971242

(7275)

on December 13, 2011
at 12:43 PM

There was some beginning evidence (though again, I don't know the current state of the field) that humans are able to taste essential fatty acids: not just a mouthfeel thing, but a real sense of taste. And it showed up for essential fatty acids but not the non-essential ones, which I found fascinating.

7841848bd0c27c64353c583fb7971242

(7275)

on December 13, 2011
at 12:40 PM

You get olfactory stimulation even with your mouth closed if you're still breathing through your nose. Also, 10 years ago when I was working in a taste research lab, we were pretty skeptical of the umami claims, given that the only umami research around at the time was from the manufacturers of MSG. I haven't followed up on it since then, so I'm not sure what the status of the legitimacy of umami as an additional taste, is. However, if it was a taste, it wouldn't only be in Japanese food, but in any savory food with glutamate, such as muscle meet.

8508fec4bae4a580d1e1b807058fee8e

(6244)

on December 12, 2011
at 08:50 PM

LOL! OMG! Only on PH!!

Bf57bcbdc19d4f1728599053acd020ab

(5043)

on December 12, 2011
at 08:13 PM

On your plate? But wait - plates can't be paleo? I'm pretty sure ceramics are neolithic...

9f54852ea376e8e416356f547611e052

(2957)

on December 12, 2011
at 07:20 PM

Agreed with Shari. One of the things that attracted me about paleo in the first place is that it's not dogmatic like religions are. Having guidance on how to chew? Seriously?

24fcc21452ebe39c032be6801d6bbadd

(9812)

on December 12, 2011
at 05:36 PM

+1 for cyclical chewing pattern

96bf58d8c6bd492dc5b8ae46203fe247

(37227)

on December 12, 2011
at 05:23 PM

@Dave S Just remember, DON'T LOOK DOWN! Find your food on your plate with your fingers and you'll be fine. :-))

96bf58d8c6bd492dc5b8ae46203fe247

(37227)

on December 12, 2011
at 05:22 PM

@Renee, you nailed it! When my nose is stuffy if I don't pay attention I try to eat and breathe through my mouth at the same time and I get massive burps. Very dumb!

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 04:51 PM

Dave S - like fear of saturated fat, you need to overcome this

A968087cc1dd66d480749c02e4619ef4

(20436)

on December 12, 2011
at 04:48 PM

I'm just worried that my food will fall out.

A968087cc1dd66d480749c02e4619ef4

(20436)

on December 12, 2011
at 04:48 PM

There is only one thing that should be eaten with an open mouth. A tube steak.

A968087cc1dd66d480749c02e4619ef4

(20436)

on December 12, 2011
at 04:46 PM

If open mouth chewing is paleo, then I don't want to be paleo!

Af005ec9a8e028f2b04bf5367b64e0d6

(2797)

on December 12, 2011
at 04:31 PM

I think this question finally hits on the reason my results are plateauing

F92e4ca55291c3f3096a3d4d3d854986

(11698)

on December 12, 2011
at 04:24 PM

..and I would think opening your mouth would make you swallow more air = bloat.

98bf2ca7f8778c79cd3f6c962011cfdc

(24286)

on December 12, 2011
at 04:24 PM

I'm pretty sure I'm near death at this point. Gluten, carbs and an open mouth. God help me please.

F92e4ca55291c3f3096a3d4d3d854986

(11698)

on December 12, 2011
at 04:24 PM

I tend to agree with Shari - questions like this almost make me angry, it's like, is this the extent of your problems? i know i shouldn't think that way, it's just hard when you feel sick and in pain every day.

98bf2ca7f8778c79cd3f6c962011cfdc

(24286)

on December 12, 2011
at 04:23 PM

Love you too honey.

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 04:03 PM

I had to upvote this question. But only to spite Shari to be clear

07ca188c8dac3a17f629dd87198d2098

(7970)

on December 12, 2011
at 04:00 PM

Shari, the answer to that is a most emphatic YES. You SHOULD eat your boogers.

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 03:57 PM

Shari - please don't tell me you ate that gluten with open mouth. I am very concerned now. Call me right away to let me know you are ok

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 03:52 PM

Shari - your lack of carbs is impacting your logical reasoning. Might I suggest a tuber. I have one for you. I'll bring the sour cream too

98bf2ca7f8778c79cd3f6c962011cfdc

(24286)

on December 12, 2011
at 03:52 PM

I seriously have the urge to downvote you on this one but I'll try to restrain myself. We're getting a little too close to "should I eat my boogers" territory here.

98bf2ca7f8778c79cd3f6c962011cfdc

(24286)

on December 12, 2011
at 03:50 PM

But Aravind wasn't that only found if you chewed with mouth open while simultaneously massaging the nipples? You needed the hormone surge provided by the stimulation to optimize the aeration? For some reason I thought that was the final conclusion. Could be that I'm just confused.

07ca188c8dac3a17f629dd87198d2098

(7970)

on December 12, 2011
at 03:29 PM

Aravind, no! I haven't seen it! I usually devour such studies (with my mouth fully open, of course) - so if you could send a link I'll eat it right up.

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 03:26 PM

Kent - did you read that study that showed Leptin sensitivity was significantly improved with food aeration vis-a-vis open mouth chewing? I can send it to you if you'd like

Eecc48184707bc26bce631485b5b7e34

(4764)

on December 12, 2011
at 03:09 PM

bwahahaha. (but really, it's questions like this that keep me from coming here more often)

164ed7cd8d84c926bc66f366619bf853

(495)

on December 12, 2011
at 03:06 PM

lol just don't do it at a social function like a work party! Just imagine the "neanderthal" comments...

Dfada6fe4982ab3b7557172f20632da8

(5332)

on December 12, 2011
at 02:46 PM

You're forgetting the studies from modern hunter-gatherer societies, which show that there is a strong social component, with those open to 'dancing' later keeping their mouths more open as a signal of intent.

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4 Answers

12
D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 03:48 PM

The answer is it depends. Once again the C-word rears its head - CONTEXT! The optic with which you view the problems matters.

As you know, digestion of starch begins in the mouth with amylase, which is the catalyst to break down starches into sugars. The effectiveness of amylase is inversely related to the oxidation of the starches as the enzyme begins the breakdown. Therefore you should always chew your tubers and safe starches with mouth closed to minimize oxidation.

With fats, however, we have the exact opposite situation. You want to maximize oxidation, which will improve lipolysis post digestion. Eat your fats with mouth open. Low carbers think insulin management is why they lose weight. WRONG! Closed mouth fat oxidation is the real reason.

Since meals are typically of mixed macronutrients, we have a dilemma with conflicting objectives above. My recommendation is a cyclical chewing pattern. Perhaps follow a 5-1-5 cadence - 5 seconds of open mouth chewing followed by a 1 second transition to closed.

Remember that being Paleo is not about re-enactment. Don't worry if you can't mimic Paleo man's behaviors exactly. Do your best and forget the rest!

Bf57bcbdc19d4f1728599053acd020ab

(5043)

on December 12, 2011
at 08:13 PM

On your plate? But wait - plates can't be paleo? I'm pretty sure ceramics are neolithic...

24fcc21452ebe39c032be6801d6bbadd

(9812)

on December 12, 2011
at 05:36 PM

+1 for cyclical chewing pattern

8508fec4bae4a580d1e1b807058fee8e

(6244)

on December 12, 2011
at 08:50 PM

LOL! OMG! Only on PH!!

A968087cc1dd66d480749c02e4619ef4

(20436)

on December 12, 2011
at 04:48 PM

I'm just worried that my food will fall out.

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 04:51 PM

Dave S - like fear of saturated fat, you need to overcome this

96bf58d8c6bd492dc5b8ae46203fe247

(37227)

on December 12, 2011
at 05:23 PM

@Dave S Just remember, DON'T LOOK DOWN! Find your food on your plate with your fingers and you'll be fine. :-))

11
07ca188c8dac3a17f629dd87198d2098

(7970)

on December 12, 2011
at 02:42 PM

Mouth open.

Totally more paleo.

It will help aerate your food as you eat leading to better nutrient absorption.

It's totally clear from the fossil record that our earliest ancestors did it this way.

164ed7cd8d84c926bc66f366619bf853

(495)

on December 12, 2011
at 03:06 PM

lol just don't do it at a social function like a work party! Just imagine the "neanderthal" comments...

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 03:52 PM

Shari - your lack of carbs is impacting your logical reasoning. Might I suggest a tuber. I have one for you. I'll bring the sour cream too

Eecc48184707bc26bce631485b5b7e34

(4764)

on December 12, 2011
at 03:09 PM

bwahahaha. (but really, it's questions like this that keep me from coming here more often)

A968087cc1dd66d480749c02e4619ef4

(20436)

on December 12, 2011
at 04:48 PM

There is only one thing that should be eaten with an open mouth. A tube steak.

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 03:57 PM

Shari - please don't tell me you ate that gluten with open mouth. I am very concerned now. Call me right away to let me know you are ok

Dfada6fe4982ab3b7557172f20632da8

(5332)

on December 12, 2011
at 02:46 PM

You're forgetting the studies from modern hunter-gatherer societies, which show that there is a strong social component, with those open to 'dancing' later keeping their mouths more open as a signal of intent.

D1c02d4fc5125a670cf419dbb3e18ba7

on December 12, 2011
at 03:26 PM

Kent - did you read that study that showed Leptin sensitivity was significantly improved with food aeration vis-a-vis open mouth chewing? I can send it to you if you'd like

98bf2ca7f8778c79cd3f6c962011cfdc

(24286)

on December 12, 2011
at 04:24 PM

I'm pretty sure I'm near death at this point. Gluten, carbs and an open mouth. God help me please.

07ca188c8dac3a17f629dd87198d2098

(7970)

on December 12, 2011
at 03:29 PM

Aravind, no! I haven't seen it! I usually devour such studies (with my mouth fully open, of course) - so if you could send a link I'll eat it right up.

98bf2ca7f8778c79cd3f6c962011cfdc

(24286)

on September 07, 2013
at 01:28 AM

I just bet you will. Yeah, I was glutenized last night so clearly I'm not in my right mind. Plus it's really cold here in Nashville so I think my brain has shut down a bit. I need a pop tart in the worse way right now.

98bf2ca7f8778c79cd3f6c962011cfdc

(24286)

on December 12, 2011
at 03:50 PM

But Aravind wasn't that only found if you chewed with mouth open while simultaneously massaging the nipples? You needed the hormone surge provided by the stimulation to optimize the aeration? For some reason I thought that was the final conclusion. Could be that I'm just confused.

0
Medium avatar

on December 13, 2011
at 05:06 PM

Open mouthed if weight loss is the goal. Easier for food to fall out before mastication. Key: avoid mastication, it causes salivary blindness.

0
7cff942f4fc949d36b27bc6fe68f363c

on December 13, 2011
at 12:32 PM

Since 90% of taste is actually attributed to the sense of smell, if you eat everything without taking in any air through the mouth and allowing a few odorants from the food out for your nose to sense, you will not enjoy your meal nearly as much.

There are only 4 or different tastes your tongue is capable of depending on who the expert is, sweet, sour, bitter, and salty. If you eat oriental foods a fifth taste umami which is Japanese for good taste.

7841848bd0c27c64353c583fb7971242

(7275)

on December 13, 2011
at 12:40 PM

You get olfactory stimulation even with your mouth closed if you're still breathing through your nose. Also, 10 years ago when I was working in a taste research lab, we were pretty skeptical of the umami claims, given that the only umami research around at the time was from the manufacturers of MSG. I haven't followed up on it since then, so I'm not sure what the status of the legitimacy of umami as an additional taste, is. However, if it was a taste, it wouldn't only be in Japanese food, but in any savory food with glutamate, such as muscle meet.

7841848bd0c27c64353c583fb7971242

(7275)

on December 13, 2011
at 12:43 PM

There was some beginning evidence (though again, I don't know the current state of the field) that humans are able to taste essential fatty acids: not just a mouthfeel thing, but a real sense of taste. And it showed up for essential fatty acids but not the non-essential ones, which I found fascinating.

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