Nothing.
Currently 32 hours into an autophagy fast.
Autophagy may kick in after at least 12 hours of fasting which means people who eat an early dinner and a late first meal with nothing but water, coffee, or tea in between, see usually autophagy kick in within every 24 hour period. There is strong evidence to suggest this is beneficial. Longer fasting periods, especially those over 48 hours will increase autophagy further. I do one, two or three fasting days on a semi-regular basis, maybe every 4 to 6 weeks. I also tend to not eat for at least 8-10 hours between my last and my first meal because I believe the metabolic long-term advantages of pushing my metabolism into a catabolic state every day are incalculable.
Testing my willpower to see if I can get through the day.
Luckily, after a day or two it gets easier for most people.
I have heard there are benefits to long term hunger, and going to see if I see any benefits.
Hunger in itself is not beneficial. It's the suppression of the m-Tor signaling pathway and activation of it's counterpart, AMPK, and the catabolic state that are beneficial. Faced with lack of nutrients, our metabolism must get its energy by breaking down tissue fir energy. The two main sources are body fat and defective/abnormal cells. If you can avoid hunger during fasting it's better because you fast more easily.
18-24 hours in the hunger pangs were getting pretty bad, and cravings were tempting.
Hunger and cravings should diminish after a day or two. But yes, will power is required. Nothing that is worth doing is ever easy.
Went to bed on empty stomach, and slept readonably well. And surprisingly not overly hungry on waking.
So far only water, and black coffee.
One thing to watch out for is ketosis, a metabolic state that comes with fat burning because the body is low on glucose. When you go into ketosis you may taste a weird taste in your mouth or smell an unusual smell when breathing out forcefully through your nose. During ketosis, the body produces acids called ketones that you can detect with your taste buds and olfactory senses. Ketones smell like stinky cheese or acetone. If you have metabolic issues, ketosis can cause a life-threatening condition, ketoacidosis.
The keto diet is based on the concept of keeping the body in ketosis for several hours a day and it is ketosis that leads to rapid fat loss.
Ketosis is induced by a lack of blood sugar (very low or no-carb diet) or by the body's inability to use blood sugar prooerly (undiagnosed or untreated diabetic). It is important to have a doctor check you out before endeavoring on a fasting journey because an undiagnosed metabolic condition could make such an endeavor deadly.
Anecdote: an acquaintance decided to fast hard to induce weight loss witout previous medical consultation. She started fasting and after 4 days she ended up in the ER with multiple organ failure. Her blood glucose levels were over 700. She was an undiagnosed Type 2 diabetic and when she started fasting her pancreas stopped making any insulin. As a result her blood sugar kept increasing into a deadly range. At the same time she did lose a surprising amount of weight but not from fat loss but rather from her body metabolizing her muscles. She came within an inch of dying and she did cause permanent kidney damage with the crazy high blood sugar.
Apologies for the lengthy diatribe but I want you to be safe.
I typed this on my phone so there are tons of errors to be found. This has been an unfortunate reality for the last few days. I have a tiny 2.5"x0.5" window in which to type with 1/8" talk letters. This tricked-out browser also makes using emoticons neigh impossible. The browser refuses all (?) cookies and makes website usage difficult. But it's secure. So secure I can barely use it. Here we go again with the push notification pop-up. Stick a fork in me, I'm done.