Does Magnesium Break A Fast?

Intermittent fasting has become a popular way to achieve weight loss and improve overall health. But with any diet or lifestyle change, there are often questions and concerns about what is and isn’t allowed. One common question is whether or not magnesium supplements and other minerals break a fast. In this article, we’ll dive into the science behind fasting and magnesium to help you make informed decisions about your fasting practice. So, let’s get started!

Fasting has been practiced for centuries for various reasons, including religious and spiritual purposes. In recent years, it has gained popularity as a weight loss and health improvement technique. However, there are still many misconceptions about what is and isn’t allowed during a fast. One of the most common questions is whether or not magnesium supplements and other minerals will break a fast. In this article, we’ll explore the science behind fasting and magnesium to help you make informed decisions about your fasting practice.

Yes, magnesium can break a fast as it is considered a supplement that contains calories. However, the amount of calories in magnesium supplements is minimal and is unlikely to have a significant impact on your fasting goals. If you are following a strict fasting protocol, it is best to avoid taking magnesium supplements during the fasting period.

Does Magnesium Break a Fast?

Does Magnesium Break a Fast?

Intermittent fasting has become a popular trend in recent years, with many people turning to this approach to improve their health and lose weight. During a fast, you restrict your calorie intake to a certain window of time, with the aim of giving your body a break and promoting cellular repair. But what about supplements? Can you take them during a fast? In particular, does magnesium break a fast? Let’s explore this question in more detail.

What Is Magnesium?

Magnesium is an essential mineral that plays a crucial role in many body functions. It is involved in energy production, muscle contraction, nerve function, and bone health, among other things. Magnesium is found in many foods, including leafy greens, nuts, seeds, and whole grains. However, some people may not get enough magnesium from their diet alone and may need to take supplements.

Magnesium and Fasting

When it comes to fasting, the question of whether magnesium breaks a fast is a bit complicated. On the one hand, magnesium supplements do contain calories, albeit a small amount. Therefore, taking magnesium during your fasting period technically breaks the fast, as it can interfere with the body’s metabolic state. However, the number of calories in a magnesium supplement is negligible, and the benefits of taking magnesium may outweigh the calorie intake.

The Benefits of Magnesium

Magnesium has many health benefits that make it a popular supplement choice for many people. Some of the benefits of magnesium include:


  • Reducing inflammation

  • Improving sleep quality

  • Lowering blood pressure

  • Relieving muscle cramps

  • Reducing anxiety and depression

Magnesium Vs Other Supplements

When it comes to taking supplements during a fast, magnesium is not the only supplement that people may consider. Other popular supplements include multivitamins, electrolytes, and probiotics. Compared to these supplements, magnesium is relatively low in calories and is unlikely to have a significant impact on your fast. However, if you are trying to achieve a strict fast, you may want to avoid taking any supplements during this time.

How to Take Magnesium During a Fast

If you do decide to take magnesium during your fast, there are a few things to keep in mind. First, choose a high-quality magnesium supplement that is easily absorbed by the body. Magnesium citrate and magnesium glycinate are two good options. Second, take your magnesium supplement with plenty of water to help with absorption and prevent dehydration. Finally, be mindful of the timing of your magnesium intake. Taking magnesium at the beginning of your fasting period may be more beneficial than taking it towards the end.

The Bottom Line

So, does magnesium break a fast? Technically, yes. However, the calorie content of magnesium supplements is minimal, and the benefits of taking magnesium may be worth the small calorie intake. If you are trying to achieve a strict fast, you may want to avoid taking any supplements during this time. However, if you do decide to take magnesium, choose a high-quality supplement, take it with plenty of water, and be mindful of the timing of your intake.

Frequently Asked Questions

Here are some common questions related to fasting and magnesium:

1. What is fasting?

Fasting is the practice of abstaining from food or drink for a certain period of time. This can be done for religious, health, or personal reasons. Fasting has become increasingly popular as a way to improve health and lose weight.

However, it is important to note that fasting should always be done under the guidance of a healthcare professional, as it can be dangerous if done improperly.

2. Can magnesium be consumed during fasting?

Magnesium is an essential mineral that is important for many bodily functions, including muscle and nerve function, blood sugar regulation, and bone health. It is also commonly used as a dietary supplement.

While magnesium supplements can be consumed during fasting, it is important to check with a healthcare professional first to ensure that it is safe for you.

3. Will consuming magnesium supplements break a fast?

Consuming magnesium supplements during fasting will not break the fast, as they do not contain any significant calories or macronutrients. However, it is important to note that some forms of magnesium supplements may contain fillers or additives that could potentially break the fast.

If you are following a strict fasting regimen, it is best to stick to plain magnesium supplements or consult with a healthcare professional for guidance.

4. What are the benefits of taking magnesium supplements during fasting?

Magnesium supplements may have several benefits when taken during fasting, including improved muscle and nerve function, reduced stress and anxiety, and better sleep quality.

However, it is important to note that taking too much magnesium can also have negative side effects, such as diarrhea and stomach cramps. Always follow the recommended dosage on the supplement label and consult with a healthcare professional before taking any new supplements.

5. What are some natural sources of magnesium that can be consumed during fasting?

There are several natural sources of magnesium that can be consumed during fasting, including leafy green vegetables, nuts and seeds, whole grains, and fish.

While these foods can be consumed during fasting, it is important to keep in mind that they do contain calories and macronutrients, which could potentially break the fast. Always consult with a healthcare professional for guidance on what foods and supplements are safe to consume during fasting.

Do Supplements Break a Fast? #ListenToTheSisson


In conclusion, the answer to whether magnesium breaks a fast is not straightforward. While magnesium itself does not contain any calories, some forms of magnesium supplements may have added ingredients that could potentially affect your fast. It’s important to carefully read the labels and do your research before taking any supplements during your fasting period.

However, magnesium is an essential mineral that plays a crucial role in many bodily functions. If you are fasting for an extended period, you may want to consider taking magnesium supplements to ensure that you are meeting your daily recommended intake. It can also help alleviate some of the common symptoms of fasting, such as headaches and muscle cramps.

Ultimately, it’s up to you to decide whether taking magnesium supplements during your fast is right for you. Just remember to listen to your body and consult with a healthcare professional if you have any concerns or questions. With careful consideration and proper research, you can make informed decisions about your fasting routine and supplement intake.

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