Fasting 1 day vs 3 days

fasting
(JM) #1

How effective is a 1day fast vs a 3 day fast?

What are the key differences one can expect?

I am doing a 24 hour fast at the moment (post fat adapted) and feeling great but wondering what the rewards are from a 3 day fast in future.

(bulkbiker) #2

For me lower blood sugar and higher ketones on the 3 day fast over the 24 hours.
Fairly continuous weight loss… but it usually comes back when eating starts again.
What are your aims for fasting?

(Omar) #3

I did not listen to Megan but as the title suggests.

#4

fasts tend to get easier as they get longer. you will also spend more time in autophagy the longer you are fasting. metabolism tends to stay up for up to 3 days, then drops but still provides benefit, just at slower pace

(Alec) #5

Can we please define a “1 day fast” here? Do you mean 24 hours, meaning for example dinner one night to dinner the next night? Or do you mean 36 hrs ie dinner day 1 to breakfast day 3?

(Windmill Tilter) #6

For Autophagy: Longer is better hands down. Some people don’t hit peak autophagy, as measured by GKI, until day 5 of a water fast.

Fat Loss: A couple 1 day (42hr) fasts a week works fine, is sustainable long term, minimizes metabolic adaptations. Dr. Fung recommends this as default for long term weight loss at the IDM clinic.

(Alec) #7

My personal experience is that this regime just works for weight loss, and when fat adapted really quite easy to maintain.

(JM) #8

Indeed correct, Dinner to dinner.

(Alec) #9

In which case I would say a 3 day fast is more effective. 24hrs is OK, but the real magic starts at 36 hrs.