Energy Sources During Fasting and Starvation

In this video I have explained different sources of energy fro our brain, RBC and other tissues during fasting and starvation. The timeline for glycogen brakdown, gluconeogenesis, keton bodies utilization, fatty acid oxidation, lipolysis, role of glucagon and other catbaloic hormones are explained.
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Key words:
Fasting
starvation
Ramadhaan
glycogen
glycogenolysis
glycogenesis
gluconeogenesis
glucose
ketone bodies
fatty acids
oxidation
lipolysis
adipose tissue
liver
beta-oxidation
ketolysis
ketogenesis
step-1
Dr Mungli
usmle
Mungli

[@CristiVladZ]

very explicative! thank you. though since the body can last for so long on bodyfat stores and water, I'd say that 'starvation' is a misleading word. 'prolonged fasting' may be more appropriate.

[@DrMungli]

Thank you Cristi Vlad: yes you could call it that way. The reference books indicate, no food intake except water even beyond 24 hrs is referred as starvation, no food intake except water 2-3 hrs after last food intake but within 24 hrs is referred as fasting. so next time if you did not take food for 4 to 5 hrs and say to your friend that "I'm starving"!! it is incorrect medical terminology for the period of fasting!

[@Anonymous-007]

Thank you so much sir......... Your videos always helps me thank you again

[@DrMungli]

You are most welcome.

[@cmetube]

Great video! Thanks.

[@koubrazakaria4508]

I just discovered your videos, Dr Mungli... and I just want to say THANK YOU A BUNCH...

[@DrMungli]

+Koubra Zakaria : Your most welcome. I'm glad this video was helpful to you. Let me know if you have any request for video on Biochemistry topic.

[@koubrazakaria4508]

thanks again, Dr Mungli! I'm a medical student and I will be starting hematology next week... heme and bilirubin metabolism would be of a great help if that's not bothering you, of course...

[@ameersaifi8097]

Dr mungli, cheers to u. You mastered it

[@DrMungli]

Thank you and best wishes.

[@jackchongo4614]

You have gained a new subscriber

[@DrMungli]

Thank you, much appreciated 🙏

[@chrisramirez8097]

Excellent video man :) Tryna break my 48 hour fast challenge. It all makes sense how to get the fatty acids tapped into so I can lose this damn stubborn belly fat with my exercise regimen

[@merrymeridian9372]

Beautiful 👏👏👏👏

[@orthodoxtewahdo4912]

IT IS BETTER IF YOU USE BOARD

[@dr.nitishdas1922]

Thank you sir ....all these videos have been helping me a lot for preparing neet.....thanks a lot sir.....

[@DrMungli]

You are most welcome. I'm glad these videos were helpful to you.

[@NLvertalingenAenO]

Hi :) Super info. Tx! This explains a lot why I feel on top of the world full of energy the first 5 to 6 days during dry fast. Any idea why headache started on day 7 and went on till day 10? I started to drink water on day 7. And eating on day 8.

[@DrMungli]

Only of the explanation that could be hypothesized is low blood sugar after one week due to declining gluconeogenesis until the brain completely adopt itself to use ketone bodies.

[@sanjaysontakke9207]

Sir very nice video but I want to know something whenever I fast my blood pressure was very high what are the reasons sir please guide me to get out of this and I am very big fan intermittent fasting so please help me thanks again

[@DrMungli]

One of the reason for fasting hyperglycemia is hyperinsulinemia with insulin resistance. Check out your weight, abdominal circumference and insulin levels.

[@MrDDDDDDDDDD]

Seems ketone goes to peak averaging about 4-5 mmol/l after just 72 hours which doesn't match with your example, could you please explain? Thank you.