Intermittent Fasting and Hair Loss

Intermittent Fasting and Hair Loss

Intermittent fasting is an eating pattern where you move between periods of eating and fasting. There are no specific rules on which foods to eat, but rather when you should eat them. There are two schedules of Intermittent Fasting that are often used:
  • time-restricted feeding
  • alternate day fasting.

For example, you have a shortened window during the day when you eat food. Usually this is 4-8 hours. The other hours of the day, you fast. Alternatively, you fast the entire day, every other day.


Can Intermittent fasting cause hair to regrow?

There’s not enough research to show that intermittent fasting can cause hair to regrow.

Some of the known benefits of Intermittent Fasting are:

  • Intermittent Fasting Can Reduce Insulin Resistance, Lowering Your Risk of Type 2 Diabetes.
  • Intermittent fasting improves various metabolic features known to be important for brain health
  • Intermittent Fasting May be Beneficial For Heart Health
  • It can Help You Lose Weight and Belly Fat




Can Intermittent Fasting cause hair loss?

Though the benefits of intermittent fasting are still being studied, there's evidence that this type of diet plan has negative side effect, such as

  • hair loss
  • anxiety
  • stress

Intermittent fasting can shock your body into Telogen Effluvium - this is a common type of temporary hair loss.

Telogen effluvium is the name for a common cause of temporary hair loss due to the excessive shedding of resting or telogen hair after some shock to the system. New hair continues to grow. Telogen hair is also known as club hair due to the shape of the root.

There are a number of reasons that you could experience this type of hair loss due to a change in diet.


Interfering with your sleep:

Rumsey said intermittent fasting can also disrupt your sleep cycle or lead to restless nights.

Multiple studies have shown that fasting can decrease your amount of REM sleep, which is believed to improve memory, mood, and learning capacity.



When your body undergoes a major dietary upset - this can increase the stress hormone cortisol. If you do not get your diet quite right you can experience stress due to nutritional deficiencies, calorie restrictions and psychological stress.

High cortisol levels are also associated with fat storage, which is unhelpful if you're trying to lose weight.


Calorie deficits:

It’s likely that you’ll be taking in less calories on an intermittent fasting diet.

This study  shows that restricting your calories: can cause hair loss.

Intermittent Fasting can upset your hormones. Hormones play a huge role in the hair growth cycle.

In simple terms, in women, an excess of androgens (which are male hormones)  which can occur for those with conditions such as polycystic ovarian syndrome (PCOS) can cause hair loss.

If the hair growth cycle is shortened, it can result in the body losing hair faster than it can grow, which results in hair loss.


You may not realize it, but when going through a large dietary change, you could be missing out on key nutrients and minerals that your body needs to ensure your hair remains healthy and strong.

If you’re experiencing hair loss, it is important to visit your doctor to get to the bottom of your hair loss and to make sure that it’s likely to be temporary.

It Really Works Vitamins are also here for you. Our hair growth vitamins contain over 22 natural vitamins and minerals to help keep you and your hair, healthy.

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