You can absorb water into your skin, but not through it. If you are thirsty, in other words, it doesn’t do you much good to soak in a bath tub. You would need to drink some water, and that water would be absorbed thru the digestive tract.
You also don’t absorb salt thru your skin, which is a good thing, because it would upset the saline balance of the system whenever you went swimming in the ocean. That’s also why drinking sea water is a bad idea - it’s too saline, and your kidneys can’t excrete it fast enough.
You can absorb some things thru your skin, but mostly it acts as a barrier. THe mucous membranes are more where things are absorbed into the body.
Searching the web, I see several sources that say an avocado seed/pit is
safely edible
a good source of calcium
able to do some combination of: cure cancer, reverse arthritis, prevent asthma, make you immune to the flu and establish world peace.
I’m assuming that #3 is just so much woo, but if the other two are correct, we’ve solved at least one of the nutritional deficiencies. I can’t find any proper scientific breakdown of the nutrients in the pits, but it wouldn’t surprise me to find other trace nutrients that we need. Isn’t selenium commonly found in nuts/seeds?
Drying the pits also gives you a way to preserve food for seasons in which there are no fresh avocados.
While avocados might provide a decent amount of total protein, is it a complete protein? Very few individual plants provide enough of all of the essential amino acids at once.
That article also talks about “22 amino acids”, and doesn’t give quantities for any of them. Almost any plant or animal will contain all 20 amino acids, but most won’t contain them in the same proportions that humans need. That’s why I said “provide enough of all of the essential amino acids”.
Like, if 100 Calories worth of avocado contains 5% or more of the body’s needs for one particular amino acid, then 2000 Calories worth will provide all you need. If it provides 4%, well, you can exercise enough to make a 2500 Calorie diet appropriate, so it’s still a pretty good source. But if it provides half a percent of your needs per 100 Calories, then you can still say that it contains that amino acid, but unless you’re glutting on 20,000 Calories a day, it won’t be enough.
Only nine amino acids are essential for humans. This nutritional analysis rates avocado protein extremely high - i.e. it contains a good quantity of all nine, see the blue fan “proten quality” graphic lower right:
