
Originally Posted by
Phineas
Sorry about starting a new thread for such an old topic, but I thought this would be easier.
(1.) How long does it take to go in to ketosis? Wouldn't this theoretically be once I've burned up all glycogen in my body? Let's say I woke up and ate a bagel with my breakfast, containing 50g carbs, and it burned off by 10:00 AM. Wouldn't my body then begin to shift to alternative energy sources?
About three days.
(2.) Why can't you achieve a similar state from a simple low-carb diet. Let's say my usual bulking carbs is 350g/day. If I decrease to 100g, so maybe a potato before a workout, a couple cups of milk, and a banana, but eat it all within an hour and a half of my training why wouldn't I be in ketosis before and after my workout, after burning off those carbs?
Because, in most cases, a carb intake above 20g per day would only keep you on the verge of ketosis. In other words, ketosis will only take place when glycogen stores are fully depleted. At that point your body will turn to the next available energy source..FAT.
(3.) How does ketosis differ biologically from a low-carb diet? (i.e. 100g) For instance, what is going on in the body on low carb that's different than a ketogenic diet? You're still not providing your body with enough of its primary fuel source. Why wouldn't this still allow the body to shift at different times of the day into fat oxidation?
Depletion isn't a 'binary' (quick off~on) condition. Such a shift takes, well, about three days, lol. Seriously, the purpose of lower carb diets is mainly to control/avoid 'spill-over' (i.e., the conversion of carb intake above one's requirements) from turning into fat.
(4.) How can high-intensity training be properly performed when the body has no glycogen?
It ain't easy .....If nothing else I say is accurate...I got this one, lol. Trust me, anyone who maintains a low carb diet strictly and properly will learn a lot about themselves while in the gym. Discipline and focus will be put to the test, because one's energy level is subject to crash without warning.
(5.) What measures must be taken to preserve muscle mass if taking a simpler low-carb approach as opposed to no carbs at all?
Just maintain you minimum protein intake, and keep workouts short and sweet. Heavy weight/decreased reps.
I've read many our respected members such as Merkaba, Cowpimp, and Ian Daniel stress the simpler approach of "calories in vs. calories out", and this is the approach I find much more realistic. I know that carbs aren't essential to life, but they're extremely helpful in our realm.
Low carb, no carb, low fat.....Deosn't matter. Calories in~Calories out is the bottom line.
I've been trying to get my head around this ketosis stuff for a while. I'm even a couple days into an ketosis experiment where I'm eating under 30g carbs for a few days, and I feel like total shit. My workout yesterday was horrendous after the first couple sets. I felt sluggish and unmotivated.
I'd go even lower on the carb intake...get it over with, y'know?
During the first two days, and possibly the third, you may (probably will) feel like you've been hit by a truck. You may experience headaches, lack of energy, lethargy, dry mouth, sensation of increased body temperature, (due to slight dehydration if you don't keep your water intake up and/or don't take the proper supplements) and irritability.....this will eventually taper off.
I've read that some people function well in ketosis while others can't. I just need more information to be sold on what to me seems like such a risky, unhealthy approach. Even if ketones are an efficient source of fuel for the brain and muscles, so many people who have posted their results here on ketogenic diets have cited irritability and frustration.
Ketosis is a very liveable state, and isn't as unhealthy as it was originally thought to be. Remember, Ketosis and Ketoacidosis are two completely different conditions. Ketosis just means that your body is producing Ketones as a byproduct of fat metabolism/breakdown.(lipolysis)
Is this really the ideal approach to fat loss? Whatever happened to balanced diet with a simple modest calorie deficit?
It just depends on the individual.....a matter of choice. Personally, I have much better results with carb restrictive diets....and have found that restricting both fat and carbs (RFL/PSMF) produces great results....with no adverse effects whatsoever.....other than having to buy a bunch of new clothes. I'm down 32lbs. in 12 weeks....and I haven't killed anybody.