Posted by: Dawud Israel | May 12, 2008

Scientific Evidence on the Benefits of Fasting

I was doing some reading and came across some scientific proof of the benefits of fasting.

The material I found proves one of the recommendations of the Prophet SAAWS–namely that of the BEST fast that there is–fasting one day and then not fasting the next and repeating the cycle so it’s an alternate day fast or an intermittent fast.

Here is the hadith:

He said, ‘Then fast one day and break the fast the next. That is the fast of Dawud, peace be upon him, and it is the fairest fast.’ (One variant has, ‘It is the best fast.’) I said, ‘I can do better than that.’ The Prophet, may Allah bless him and grant him peace, said, ‘There is nothing better than that.’
(Riyadh-us-Saliheen, hadith 150)

And here is the scientific proof.

Dietary restriction has been shown to have several health benefits including increased insulin sensitivity, stress resistance, reduced morbidity, and increased life span. The mechanism remains unknown, but the need for a long-term reduction in caloric intake to achieve these benefits has been assumed. We report that when C57BL/6 mice are maintained on an intermittent fasting (alternate-day fasting) dietary-restriction regimen their overall food intake is not decreased and their body weight is maintained. Nevertheless, intermittent fasting resulted in beneficial effects that met or exceeded those of caloric restriction including reduced serum glucose and insulin levels and increased resistance of neurons in the brain to excitotoxic stress. Intermittent fasting therefore has beneficial effects on glucose regulation and neuronal resistance to injury in these mice that are independent of caloric intake.


But mice that were fed regularly only every other day—receiving the same average calorie intake as the dieting mice—showed “[dramatically] increased neurogenesis,” and also showed an increase in learning and memory abilities, Thuret said.


Subhana Allah–that’s really great isn’t it? 😀

Subhana kallahumma wa bihamdika ash-haduana la illaha illa ant astaghfiruka wa atubu ilayk, Ameen.


  1. wow! mashaa Allah. Jazaakallah khair.

  2. great piece of data.. Subhanllah!! May aal our brothers and sisters try their best to fast during this month..

  3. Some more data:

  4. Really inspirable,
    great research,
    hope same for future

  5. really great and helpfull …jazakallah khair.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s


%d bloggers like this: