Re: Overfeeding questions
Well as long as you have more calories going into the fat cell your leptin production will increase. The reason that carbs are used is because they will not cause as much fat gain as say fat would. You wouldn't want to normally overfeed on fat and carbs because that would just add too much bf as compared to eating carbs alone. You want a little spillover into the fat cells but not a tremendous amount. This is from the leptin article on the ministry of fitness website(http://www.theministryoffitness.com/.../article18.htm)
Originally posted by ChuckieT
Let me give you a bit of background before I ask my questions:
I'm currently dieting but I sorta went on a mild overfeeding (i.e. cheat) last evening when I was out. Now everyone here is knows all about carb refeeds to upregulate leptin levels, but I basically overfed on about ~ 1500 cals of mostly protein and fat with only some mix drinks as carbs. This estimated intake brings up my total calorie intake to around 3500, which is a little less then some of my past bulks.
In any case, here are my questions:
1) This is what I remember from reading some refeed articles, but it's true that a protein and fat overfeed will do little to help leptin levels right?
Another post that might be of help:http://groups.google.com/groups?q=re...DED.net&rnum=4
Researchers have identified a system that 'senses' nutrient flux (flux = what's going in versus what's going out) through both fat and muscle cells. This affects a lot of process. When dieting, more calories are leaving the fat cell than are going in (negative flux). This nutrient sensing system 'senses' this and affects many processes, one of which is leptin production (decreasing leptin production).
So leptin drops.
When overfeeding, more calories are entering the fat cells than are leaving (positive flux). The system 'senses' this and affects many processes, one of which is leptin production (increasing leptin production).
So leptin increases.
Well I would think so seeing you still ate a large amount of carbs. Adding protein into the mix wouldn't change the carbs being stored as glycogen.
2) Normally when you overfeed on carbs there is always the water bloat the next day but does this happen with lots of protein and carbs? Because I woke up about 5 pounds heavier...
Probaly the added muscle glycogen along with some water retention would be the cause of the weight gain and higher skinfold measurements. Probably nothing to really worry about especially since it was only 3500 cals total for the day:)
3) I usually take my bodyfat measurements every other Sunday morning to track my progress (7 site). I'm hoping there was some water bloat (#2) and that's why my skinfolds are slightly higher? What do you think?