Avoid Headaches While Fasting: Tips & Tricks

How to Avoid Headaches During Intermittent Fasting

Intermittent fasting can be an effective way to lose weight and improve overall health, but it does come with some drawbacks. One of the most common side effects is headaches, which can be extremely unpleasant. Fortunately, there are some simple ways to prevent and avoid fasting headaches. Read on to learn how to avoid headaches during intermittent fasting.

Stay Hydrated

One of the most important things to remember when fasting is to stay hydrated. Dehydration can cause headaches, and drinking plenty of water can help prevent them. Aim to drink at least 8 glasses of water every day, and be sure to drink more if you’re engaging in vigorous activity or in a hot environment. You can also try drinking sports drinks or other electrolyte-rich beverages to help keep your electrolyte levels in balance.

Reduce Caffeine Intake

Caffeine can also contribute to dehydration and headaches, so it’s important to reduce your caffeine intake while fasting. If you’re a regular coffee or tea drinker, try gradually reducing your intake and replacing it with decaffeinated varieties. You can also drink herbal teas, juices, and other caffeine-free beverages to help keep your caffeine levels in check.

Eat Plenty of Calories

When fasting, it’s important to make sure you’re getting enough calories. Eating too few calories can cause your blood sugar to drop, which can lead to headaches. So make sure you’re eating enough healthy fats, proteins, and carbohydrates during your eating windows. Eating meals with low sugar content before the fast can also help prevent headaches.

Boost Your Electrolytes

Low electrolytes can contribute to fasting headaches, so boosting your electrolytes can help prevent headaches while fasting. You can do this by drinking plenty of electrolyte-rich beverages like sports drinks, as well as eating foods that are high in electrolytes, such as bananas, spinach, and avocados. Taking a multivitamin can also help ensure that your electrolyte levels are in balance.

Avoid Skipping Meals

The obvious way to prevent fasting headaches is to not skip meals. Even when something comes up, like a long work meeting or delayed flight, it’s important to make sure you’re getting enough food and nutrients. If you do find yourself in a situation where you can’t eat, make sure you drink plenty of water and other non-caloric beverages to help keep your energy levels up and avoid headaches.


Headaches can be a common side effect of intermittent fasting, but they can usually be avoided with the right strategies. Make sure you’re staying hydrated, reducing your caffeine intake, and eating plenty of healthy fats and calories during your eating windows. Boosting your electrolytes can also help prevent headaches, and try to avoid skipping meals if possible. With these tips in mind, you should be able to avoid headaches while fasting.

What is the reason that intermittent fasting causes me to get a headache?

When fasting, it is common to experience a loss of salt and water in the urine, particularly during the initial 2-4 days. This can lead to dehydration if too much of both are lost, with dizziness, exhaustion, and headaches as potential warning signs. If any of these symptoms appear while fasting, it may be a signal to drink more water.

What methods can be used to relieve a headache while fasting?

The best way to avoid fasting headaches is to ensure that meals are not skipped. Even if something comes up and eating is not an option, one should try to have a small snack or a bite of something sweet. This can be enough to prevent a headache from occurring. People who fast for religious reasons should be especially mindful of this.

Can intermittent fasting cause headaches?

Intermittent fasting can lead to unpleasant side effects such as headaches, fatigue, irritability, and constipation, depending on how long the fast lasts.

avoid headaches while fasting tips tricks 17 04 2023 1

avoid headaches while fasting tips tricks 17 04 2023 2

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