What you believe can affect your appetite

I learnt a new word today: ‘ghrelin‘. It’s a hormone produced by the stomach that regulates hunger. If you have more ghrelin in your system, you’ll tend to feel hungry; if you have less of it, then you’ll tend to feel full.

So if you want to gain weight, increasing your ghrelin levels can be beneficial; and if you want to lose weight, you’ll benefit from lower levels.

Experiments on rodents showed that a daily administration of ghrelin caused weight gain:

However, as with so many things, it’s not as straightforward as that.

Here’s a thing, courtesy of Rachel, that underscores my distrust of advertising: if you believe that you’ve eaten something fattening (even if it’s not), your body will behave as though you’ve eaten more than you actually have. Contrariwise: if you believe that you’ve eaten something ‘fat free’, you’ll still feel hungry. This short video details an experiment that shows this.

So: labels matter. Perhaps it’s best not to dwell too much on them.

About pendantry

Phlyarologist (part-time) and pendant. Campaigner for action against anthropogenic global warming (AGW) and injustice in all its forms. Humanist, atheist, notoftenpist. Wannabe poet, writer and astronaut.
This entry was posted in ... wait, what?, Education, Health, illusion, Phlyarology, Science and tagged , , , , , . Bookmark the permalink.

11 Responses to What you believe can affect your appetite

  1. This is interesting.
    Have a good week.
    Be safe.

    Liked by 1 person

  2. blindzanygirl says:

    HOW interesting wibble. Fascinating.

    Liked by 1 person

  3. Bryntin says:

    The power of suggestion, eh?.
    I suggest to me that I deserve another low fat custard cream. They’re good for me.

    Liked by 1 person

  4. mistermuse says:

    I don’t know if I have ghrelin in my system, but I’m pretty sure I have a gremlin, because something keeps telling my sweet tooth how to override my willpower.

    Liked by 1 person

  5. Have you ever dreamed about food…and then discovered you gained weight?

    Liked by 1 person

  6. Pingback: The blog-driven time machine | Wibble

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