Fasting - What does it do to your body? 

I'm here for the same reasons. To study the effect of fasting which triggers the production of ketones(that means fats turning into energy). So i wanna ask you, how has the keto-diet effected your weight so far and how is the experience? Thank you

Thanks!

I've heard what you are saying, but I don't think it really holds as true as some might want us to believe.There still has to be times of hunger to get the body to tap into fat stores. It still really comes down to a calorie deficit at the end of the day. Bodybuilders in the 80's used frequent feedings of high carbs and lost fat and got in shape for a show. Yes they had their drugs too, but the body is still the body, the drugs just make it easier.

@@doug2993 Calorie deficit model is outdated. It's the hormones. Insulin is a strong inhibitor of lipolysis. Even 1g of sugar entering the body will spike insulin for several hours, even though the 1g of sugar doesn't have enough energy for several hours of work.

You are right.Muscles also store glycogen

Good question. Was wondering too. Do you now know the answer?

@@ivanovsamuraj3095 Not yet! I have asked similar questions on other videos, but the authors have not yet replied. In think if Dr Sten Ekberg decides to make a video on this topic, then he may provide the answers (because he does a thorough research on what he is talking about).

@@0anant0 Okay. Thank you.

I don't know the exact numbers but fasting massively spikes HGH which strongly inhibits proteolysis (HGH promotes muscle building and conservation).

Great diabetic question.

Can you point me to that research please. Very interesting!

It really depends how she was fasting. If she ate when she woke up and then ate before bed, she was probably really messing up her body's rhythm. There are some really important reasons why intermittent fasting has your eating window during the day either with only eating in the morning to early evening or only eating in the afternoon until evening, not at night and not when you first wake up.

Maybe it interfered with her period.

I remember learning what you said. I'm not so convinced that it's just that simple step by step process. Obviously the leaner you get and the longer you've been fasting, the more likely for muscle catabolism. I've experienced that first hand, even with PED's to help spare.

Muscles aren't spared initially. But HGH spiking after prolonged fasting conserves muscle and inhibits proteolysis. You will still lose muscle daily, if you are fasting everyday for more than a week and not getting sufficient dietary protein, but it is quite negligible + HGH will create more muscle than what is lost for OAA.

The liver is the most metabolically active organ of the body and with one of the highest energy expenditure. It uses the ATP itself. The ATP can exist in blood from other means (i.e. cell break down) but from the liver it's not transported to other organs. Each cell makes it's own.

Adipose tissue is present in , 1st skin , then superficial fasia then deep fasia afterthat we have adipose tissue..

Great diabetic question.

yes it does. Unfortunately, I am saying this from experience. The los of muscle mass makes one look skinny fat even with the fat loss. Trying to rebuild the lost muscle mass as of now. I think fasting and cutting glucose is a deadly combo especially for those that are metabolically flexible to begin with and just looking for ways to stay healthy. What most people including myself think is "well, I feel great and energetic, so i must be fine." The reality is the drivers of this energy and "feeling good" are the stress hormones: adrenaline and cortisol. Hypothyroidism and adrenal fatigue are two possible outcomes if one does not interrupt this process early enough.

😂

Ketones turn back to acetyl coA, the same end product as glucose.

@@DrMattDrMike Thankyou sir! When uni is finally open again i'll come express my gratitude personally!

@@DrMattDrMike sorry sir but I'm lost here. Isn't acetyl CoA the common pathway for Carbs, ketogenic aminoacids and lipids to enter the TCA cycle I'm not seeing your point actually:)

It does,but from what I've learnt even at the stage of prolonged fasting( 2-5 days of complete fasting a.k.a starvation) 80 percent of its energy requirement is still met by glucose and only 20percent by ketone bodies . I could be wrong of course:)

This video is about fasting, not starvation. There’s difference. Brain will preferentially (“only”) use glucose for energy as long as there’s glycogen and gluconeogenesis. When an organism enters starvation, brain is forced to use ketone bodies. I’d love to see a video about metabolic processes during severe starvation.

👍 the source

did god tell u that

this demonstrates your lack of intelligence

​@@LUVTASTEGod recommended fasting at a time when these benefits were unknown. Either he got really lucky or he's intelligent

Which one? 🤔

Well Fung really dumbs it down, so I understand why you like his explanation .

Dr. Fung is an excellent orator but his lectures won't always help you pass your biochemistry exam. His audience is the general public, not the academic students.