“The Downside of Green Smoothies” If you split people into two groups and tell them to eat as much soup as they want, but half are given big spoons and told to eat fast, and the other group is given small spoons and told to eat slow.
The slow group ended up feeling more satiated despite eating less food.
The thought is that prolonged meal duration can allow more time for our own body’s I’ve-had-enough signals to develop before too many calories have been consumed.
After all, we evolved for millions of years before cooking, when undomesticated fruits and vegetables were much tougher and fibrous.
Our body is built to expect us to take our time to eat. There weren’t any blenders on the African savannah, either.
In smoothie form, you can drink fruits and vegetables at about 2 cups a minute, 10 times what it might take to eat them in solid form.
Liquid calories can be consumed so quickly they can undermine our body’s capacity to regulate food intake at healthy levels.
It’s not the liquid texture per se, but the high rate of consumption at which liquids are normally consumed and so blend all the smoothies you want, but better to sip them slow, over a half hour or so rather than gulping them down.
Even slowly sipped, though, an all fruit smoothie may not be as filling as whole fruit, so the more greens you can add to your smoothie, the better, and you can add ground flax seeds.
The thicker the smoothie, the less hungry you may be 1, 2, even 4 hours later, and flax seeds make for thick milkshakey-type smoothies. More info in the video.