How does intermittent fasting work? Doctor explains 5 DIFFERENT METHODS (including 18:6 and 5:2)

In this video Doctor O'Donovan explains 5 different methods or ways to do INTERMITTENT FASTING, including how each one works and the benefits and downsides of each - this includes overnight fasting, 16:8 fasting, 5:2 fasting and whole day fasting (24 hour fast).

Intermittent fasting is when you alternate between periods of eating and fasting. This type of eating is often described as “patterns” or “cycles” of fasting.

Intermittent fasting isn’t about starving yourself — it’s about cutting way back on calories for short time periods. The belief is that your body becomes satisfied with smaller portions while also reducing cravings for unhealthy snack foods. That is, as long as you maintain a healthy diet while trying it all out.

In the video we cover:

00:00 - Introduction
01:05 - Overnight Fasting
02:00 - Time restricted fasting (e.g. 16:8)
03:13 - 5:2 method
04:08 - Whole day fasting
05:37 - Alternate day fasting

Many diets focus on what to eat, but intermittent fasting is all about when you eat.
With intermittent fasting, you only eat during a specific time. Research shows fasting for a certain number of hours each day or eating just one meal a couple days a week may have health benefits - for example for loosing weight and for better control of diabetes.

Further information:

#doctor #diabetes #intermittentfasting #weightloss #health #medical #fasting #intermittentfastingforbeginners
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The video is intended as an educational resource only. The information within this video or on this channel isn't designed to replace professional input, so if you have any medical issues please consult a medical provider. No professional relationship is being created by watching this video. Dr. O’Donovan cannot give any individual medical advice. All information should be verified for accuracy by the individual user. Dr O’Donovan accepts no responsibility for individual interpretation of data, although it is always accurate to the best of his knowledge at the time of the video being published. This is an EDUCATIONAL video. Images are used in accordance with fair use guidelines.

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[laitifi]

Informative, thank you. 👍🏼 I've done intermittent fasting (time restricted & 800 calorie, following a Mediterranean diet) for the last 5 yrs, and doing intensive 2 weeks or so a time. Lost 9kg and 5 ins from my waist. It's motivating to see other fasting variations and options, will switch to the 5:2. Could work better around family life with young children. Found the fasting calms my MS symptoms during flare ups so I hope to keep it going.

[chiragbhavsar]

Hallo Dr. I recentlz reported with Pre diabetec stage of bodz. I started 12 hour fasting for next 1 month ( 6 pm - 8 am) and looking forwarad to increase fasting time slowly. My qeustions is ; Is it right fasting schedule as beginner or need to change ?

[barrelagedsophie]

Looking forward to the video about why 10:14 fast for women is better! Thankyou for the information 😊

[sollyolly]

Thanks for the video. I've been doing 5:2 for 18 months, lost 14kg so far. I exercise as normal, never found fasting has impacted on that...

[usamashabbier]

My psod issue swhat i can do kindly tell im girl may age 23 but my weight80 😢 to much hair my face and chin what i can do 😢

[Gurleenkaur-slwp]

Thanks sir for giving best information . Can we drink water in fasting time

[JT-girx]

Going to try waiting until 10:00 am to eat, and then be finished supper by 6:00 pm, I think that would be the optimal 16-8 time period split.

[MochiBliss]

Thank you Sir for sharing this kinda amazing knowledge with us 💖💫 I'm doing 18/6 rn...and got amazing results 🎀✨

[garethwinnard]

Some content on prolonged fasting would be great if possible 👌🏻

[lwood]

What would you recommend for someone who works 12 hour rotating shifts?. 5am to 5pm over 2 weeks and then 5pm to 5am over 2 weeks.

[leytonhodgson]

When you say not consuming any calories would that include squash/juice for a drink?

[reshminaislam]

Very informative thank you, but can we have 1to 2 teaspoon of sugar during eating hours..

I find very hard to skip sugar in my tea.

[salik]

Can we do 16/8 intermittent fasting everyday ?how long should we continue?
& finally how many times can we eat during the 8 hours for maximum result?.

[jeffreydaclan]

I eat 12nn lunch and 4pm dinner, is that ok?

[wiseman]

2MAD 18/6 or 19/5 so have 2 meals a day, so get your nutrients ect for the day.

[Angel]

So how do you prevent the hunger headaches? That is my biggest problem when I do not eat for a long time.

[MrPeaceFroggy]

Is it fine if I eat the last mean in a 16/8 2 hours before I sleep? or I have to eat the last mean earlier

[Thakurani]

Is it healthy to do IF for a prolonged period of time (years)? Or is it a tool meant for short term use?

[nayakpriyanka]

Is drinking milk in fasting would not helps to reduce weight?

[sobekstephanie]

Is the primary purpose of 24 hour fast just weight loss or are there other health benefits?