Fat soluble nutrients


I think fat soluble nutrients are little less straight forward then vitamin B/C and minerals.
I think it would be better to add those from natural sources to the soylent mixture.
There are so many different forms of those fat soluble nutrients, 8 different kind of vitamin E, many different kinds of carotenes, different kind of omega-3, different kinds of vitamin D etc. etc.

For example, I think this is a very good product:

2ml of this contains 4880 IU vitamin A, 1520 IU vitamin D. It also contains omega 3 (I’m not sure how much exactly, but should be enough). It also contains some vitamin K2 and CoQ10.

For vitamin E (Tocotrienol/ Tocopherol) and carotenes, I think red palm oil covers this complete range of nutrients. Red palm oil is quite expensive tough. I’m searching for a good concentrate.

I think synthetic version of vitamin B/C are fine. Minerals shouldn’t be a problem as well. What do you guys think?


I definitely think adding cod liver oil is a good idea. It’d be good for your omega-3s and for your vitamin D. If you’re going for cod liver oil, I’d recommend Carlson: http://www.vitacost.com/carlson-norwegian-cod-liver-oil-unflavored. It’s popular and has a good reputation, and is a better price: $26 for 500 ml, instead of the one you link to at $44 for 237 ml. Cod liver oil has got a strong fish flavor, which could mar your soylent drink. On the other hand, Carlson has a lemon-flavored one, and the lemon does mask the fish flavor quite well.

On the other hand, I don’t know if you’d want to use the oils to get all your vitamins. According to my sources 600 iu (15 mcg) is the RDA for Vitamin D, which is equivalent to 1.5 teaspoons. That amount would also give you about 1.6 grams of Omega-3, which is what an adult male needs per day. But it’d only supply part of your RDA for A and E.


Note that Carlson adds vitamin E to the cod liver oil. Cod liver oil contains very little vitamin E naturally.

Let’s compare Carlson to GreenPasture:
Carlson: 1 teaspoon (=5ml) contains: 850IU vitamin A,400 IU vitamin D, 1100 mg omega 3
GreenPasture: 1 teaspoon(=5ml) contains: 12100 IU vitamin A, vitamin D 3800 IU 1825 mg omega 3
source: http://www.greenpasture.org/public/Products/TestData/index.cfm

So Carlson is maybe around 4 times as cheap, but GreenPasture is around 10 times as nutrient rich.
I think 2ml of GreenPasture cod liver oil gives you sufficient vitamin A,D and omega 3. Besides that it is also rich in omega6/7/9 and quinones (different forms of vitamin K2).

This 2ml will cost $0,37. It may be cheaper to buy omega3/vitamin A/vitamin D seperate. But I think it is worth to add real quality fat soluble vitamins to a soylent mixture.

For carotenes and vitamin E: http://shows.nutraceuticalsworld.com/supplyside-marketplace-2013/news/35794 this may be interesting, very new product, I couldn’t find it anywhere.