The smoothie itself won't be a problem. It can be measured, and if it fits into your calories for the day, you will lose, or maintain as you planned.
The problem comes from you blending out all the fiber, and turning fruit/veggies into a liquid. Liquids get absorbed faster, meaning you have a ton of glucose in your body at one time, and your body can only use a little at any one time. So Insulin is released by the body. some glucose is used immediately, and still more is turned into glycogen, ready to be used very soon to fuel your body. This is all good so far. The problem is, because you have so much glucose, there is still a lot left, and your body cannot leave it in your bloodstream. So Insulin takes the rest and turns it into triglyceride, and stores it as bodyfat. Again, this is normal. Not a real big problem at this point.
The real big problem comes after all you glucose is used up in the bloodstream. You have a bunch of energy stored as body fat, and you burn through your glucose, and glycogen in the muscles, and at that point, you have low blood sugar. It's at 70-80, and you are now hungry. You ate some energy, but Insulin stored it as bodyfat, and the body will have to break down the fat, and use it. This is natural, and how the body is intended to work, if you eat an easily digestible meal. It takes a while to break down fat though, and use that energy.This is called ketosis/lipolysis and we all do it. Meanwhile you are hungry at say 10 a.m., and you have food lying about everywhere. At this point, you can wait for the body to tap into the fat your smoothie was turned into, and use that as fuel, OR, you can eat more food. The reason America has an obesity problem, is most of us eat more food when hungry. The breakfast we ate that was turned into body fat doesn't get used for fuel, the "brunch " we just ate ( maybe a bagel ), gets used, then lunch, then a snack, then supper, and maybe another snack before bed.
We never tap into our energy reserves ( fat ), because we get hungry, and eat more food. We are using 80 % of our calories that we ate as fuel, and storing 20 % as fat, then never using up the fat. So the 20% ( example ) is never being used since we just eat again, because food is easy to find.
You have a few options now:
1 ) at 10 a.m., when you get hungry, just wait, and fat burning will kick in, and you will use that energy, but it may take a little while.
2 ) You can plan to be hungry in 2-3 hours, and eat 6-7 smaller meals, so that about the time you get hungry, you have a scheduled meal, not an EXTRA one.
3) You can eat carbs with fiber in them, and let them be absorbed naturally slower, and used as they are digested.
The best option is to eat foods naturally, and eat less carbs at any meal, so maybe 40 grams each at 6 meals for example. This can never be done perfectly, but can be a goal. Avoid having 80 grams at one meal, so the body has time to use the carbs you ate, and less is stored as body fat.
So the problem is not carbs, but that they are " used up " quickly when in shake form, and you get hungry as soon as Insulin has cleared you bloodstream of the glucose. It is more likely that you will overeat, and since that " cheat meal " would most likely not have been planned, you probably eat bad food.
Just be aware of the idea that you may be hungry, and plan for it. Try a smoothie, and take a snack to work, or wherever you are going. See if hunger is great, and if necessary, have the snack, but try to wait until the body taps into burning the fat, which is where the excess glucose you got from breakfast has been stored. If you are always hungry, and can't control appetite after a smoothie, then you may not want to have them, but the smoothies themselves won't cause weight gain, just maybe cause you to eat extra, which IS the reason you can't lose, or even gain.
So, indirectly yes, it is possible, but any easily digested meal, can do the same thing. The problem can be solved by having a few ozs. of nuts at 10 a.m., so as long as you don't eat 3 donuts, not a hard to solve problem. You could of course eat some food at breakfast that is harder to digest ( fat/protein ), along with your smoothie making it a more balanced meal. That is why they tell you to eat foods from all 3 macros. If you are eating 50/20/30 for the day, your meals should roughly be 50/20/20 also. A smoothie, is more like 85/10/5.
You could of course always thrown in some avocado to the smoothie, and balance the smoothie out a bit. Experiment a little, and see if you can make it work.
"We can't solve our problems with the same thinking we used when we created them "
- Albert Einstein
“Whether you think you can, or you think you can't--you're right.”
- Henry Ford
| current weight: 179.6