Analysis Version
v1
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assertion
Analysis v1
Strong Opposition

Adding salt to fizzy water helps you feel full because your body has special nerves that respond to salt and signal satisfaction.

12
Pro
54
Against

Evidence from Studies

Supporting (1)

12

Community contributions welcome

12

Chemosensory modulation of neural circuits for sodium appetite

Cohort Study
Animal
2019 Apr

When mice taste salt, their brain quickly gets a signal to stop wanting more salt—even before it’s swallowed—showing that tasting salt can make you feel full or less hungry for it.

Contradicting (3)

54

Community contributions welcome

44

The effect of oral l-arginine alone or in combination with sodium butyrate on glucagon-like peptide-1 secretion in non-diabetic adults with obesity.

Randomized Controlled Trial
Human
2025 Jul 7

This study didn’t test salt or brain cells that sense salt—it tested two other substances and found they didn’t make people feel less hungry, even though they changed one hormone. So it doesn’t support the claim about salt reducing appetite.

11

Aldosterone-Sensing Neurons in the NTS Exhibit State-Dependent Pacemaker Activity and Drive Sodium Appetite via Synergy with Angiotensin II Signaling.

Cohort Study
Animal
2017 Sep 27

This study found that certain brain cells make you crave salt when you don’t have enough, not make you feel full. So it says the opposite of the claim that salt makes you less hungry.

3

Humulus lupulus L.: Evaluation of Phytochemical Profile and Activation of Bitter Taste Receptors to Regulate Appetite and Satiety in Intestinal Secretin Tumor Cell Line (STC-1 Cells).

Cross-Sectional Study
In Vitro
2024 Nov

This study looked at how bitter substances in hops make you feel full, not how salt in your mouth affects your hunger — so it doesn’t answer the question about sodium and brain neurons.

Similar Assertions

The brain uses two different signals to control salt craving: one slow signal that says 'we need salt' and one fast signal that says 'you tasted salt, stop now'—and they work together to make the mouse eat just enough.

0
12
77%

Just turning on the salt-craving brain cells doesn't make mice eat salt fast—unless you also trigger the angiotensin signal, then they immediately start licking salt like crazy.

11
0
74%

Mice stop wanting salt almost instantly when they taste it in their mouth—even before the salt gets into their body—and this happens because a specific brain signal turns off when salt is tasted.

12
0
73%

If you remove most of the salt-craving brain cells, mice no longer seek out salt—even when they’re very low on it.

11
0
72%

These brain cells only make mice want salt—not water or food—and don’t affect how much they move around.

12
0
71%

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