truefalsebanana
truefalsebanana on Hacker News
At first, I was astonished at the number of reviews where the product flamboyantly failed its purpose, e.g. "hammer cut off my fingers".
But over the years shopping I have begun to see new sellers with new products with lots of reviews for other products that they never had, bizarre reviews that don't quite make sense, reviews for completely different products, and reviews that seemed too suspiciously easy to read for their message, and realized how very deep the fake advertisement industry is embedded.
When you eat food, it takes your body time to digest it all, so you get a slow and steady blood sugar flow. However, when you eat smoothies, all of that food is already nearly ready to be absorbed, so your blood sugar spikes and it's a tremendous burden on your liver to handle all of that food value all at once. Needless to say, smoothies are really not for diabetics or athletes! This is the number one issue with smoothies. A slow and steady blood sugar / nutrition delivery is better for everything.
Outside of that is the sugar issue. Sugar and sweeteners are in everything and people naturally gravitate towards recipes with sugar in it, whether they realize it or not; maybe you aren't using fruit juice, but now you're sweetening with a ton of bananas, or now carrots, etc. We're just helplessly addicted to it.
A third, less known issue is that fruit now adays has been so domesticated that it really has very little nutritional value (esp compared with its wild cousins). It's right up there with milk on "why are we telling people to eat this" type of FDA questions. If you google "healthy smoothie", all you will see are yummy fruit-based smoothies which really are hardly healthy.
If you are after fiber, there are much better things to eat. So in general, fruit smoothies are just not healthy at all no matter what. The really gross-tasting cross-fit type smoothies full of wheatgrass, kale, and other vegetables are much better for you, but who's going to subject themselves to that kind of punishment; might as well eat a salad, at least there's some fat from the dressing. Regarding fiber specifically, flaxseed and chiaseed can be mixed into just about anything with very little taste effect. Beans and lentils are high in fiber.
Honestly, even a no-sugar fiber drink mix would probably be better for your body as a whole than a smoothie.