Do Nootropics Break a Fast?

Most types of "smart drugs" – common nootropic substances – do not break a fast. Cognitive enhancers typically cannot break a fast because they do not metabolize into real "food" in the body. For instance, caffeine from coffee cannot break a fast because it does not contain calories and cannot be metabolized to yield energy (or other nutrients).

In this article, I'll go over the most commonly asked questions which nootropics users have about fasting.

So without further ado, let's just get straight into it, shall we?

Fasting: What's the Deal?

When it comes to fasting, there are different types.

One type is "intermittent fasting" (IF), which involves eating within an 8 to 12 hour period and fasting for the other 16 to 12 hours.

Then there are "water fasts" and "juice fasts", which both involve consuming nothing but water or juice for a set period of time.

And finally, there's "complete fasting", which is when you consume zero calories for an extended period of time (usually 7 days or more).

Now that we've got that out of the way, let's move on to nootropics and fasting.

Can Nootropics Break a Fast?


The short answer is no, nootropics typically cannot break a fast.

This is because most nootropic substances do not contain any calories and are not metabolized into real food in the body.

If you're taking a supplement that claims it can break a fast or help with fasting, then that's probably false advertising.

On the other hand, just because most nootropics are calorie-free doesn't mean they do not have an effect on your brain.

For instance, piracetam has been shown to increase glucose uptake in parts of the brain where blood flow is typically lower in elderly people.

And some nootropic stacks claim they contain "nutrients" in micrograms or milligrams, but in reality, these nutrients are only included for marketing purposes and lack any significant effect when taken orally.

So Can Nootropics Be Used During Fasting?

Yes! Most nootropics are perfectly safe to take while fasting because they don't break a fast.

And if you want to, some nootropics can actually improve your concentration and focus while you're fasting.

I've experimented with this quite a bit myself, but I'm pretty sure it has more to do with my mindset than anything else.

If you believe that the nootropic is doing something for you, then there's obviously going to be an effect – whether or not it's placebo or not doesn't matter because the end result is still the same!

So the bottom line is this: don't worry about breaking your fast when taking most nootropics.

How Can Nootropics Help Fasting?

As I've mentioned earlier, fasting can cause poor concentration and focus.

This isn't because your body is lacking energy – it's usually because your body is switching to fats as its primary source of energy.

In the absence of glucose, your brain will use ketones as a substitute source of energy.

Ketones are produced when your body breaks down fatty acids for energy, and they're a much more efficient source of energy for the brain than glucose.

This is why people often experience better concentration and focus when they're in ketosis.

If you want to avoid the negative side effects of fasting, then you can take nootropics and electrolytes to help your body make the switch to ketones and avoid any negative symptoms.

Some popular nootropics that can help while you fast:

  • Caffeine
  • Piracetam
  • Noopept
  • L-Theanine
  • Huperzine A


So to sum up, most nootropics do not break a fast and can actually help improve your concentration and focus while fasting.

Just make sure you're taking a nootropic that doesn't contain any calories or nutrients, as these will only slow down your progress.

If you're looking for a good nootropic to help with ketosis, then I would recommend caffeine, piracetam, noopept, theanine, or huperzine A.

FAQ - Nootropics and Fasting

Q: Can nootropics break a fast?

A: No, they do not contain any calories and will not "break" a fast. Most nootropics can be taken while fasting with positive results.

Q: How long does it take for nootropics to kick in while fasting?

A: It depends on the nootropic and how your body responds to it. For some, you may feel the effects within minutes, whereas others might take hours before noticing anything.

Q: What can I take with nootropics to help improve my focus and concentration while fasting?

A: You can take electrolytes, such as magnesium and sodium, to help your body make the switch to ketones and avoid any negative symptoms. Some popular nootropics that can help while you fast are caffeine, piracetam, noopept, L-theanine, and huperzine A.

Q: What are the best nootropics for fasting?

A: Caffeine, piracetam, noopept, L-theanine, and huperzine A are all great nootropics for fasting. They help improve focus and concentration while avoiding any negative side effects.

Q: When can I take nootropics and when should I avoid them?

A: Caffeine and other nootropics with caffeine in it are best taken early in the morning before breaking your fast. Nootropics that don't contain caffeine, such as piracetam, can be taken at any time. You can also consume them more than once a day if you prefer. Make sure to experiment with different dosages of each nootropic to find what works best for you.

Q: Which is better: fasting or taking nootropics while fasting?

A: It depends on who you ask, but some people report better focus and concentration when taking proper amounts of electrolytes without any nootropics. Others find that combining nootropics with electrolytes helps them stay in ketosis and avoid any negative symptoms. Ultimately, it's up to you to decide which method works better for you.