The largest consumer of soy oil by far is China. The consumption in China is about twice that of the U.S. In China soy oil is used extensively as a cooking oil (and for other uses) as it is really cheap to produce. In the U.S. soy oil is used for the manufacturing of all kinds of processed and packaged foods. You know the kind of junk that none of us really wants to eat no matter what our health conditions are. Soy oil got a big foothold in the U.S. and in other countries many years ago because of the big "heart healthy, low fat" craze that swept the nation as margarine became the big substitute for butter.
Getting back to Soy milk ... The issue with soy milk is that it it really, really high in Omega 6, even if you are drinking a low fat version. Take a look at the nutritional profile of a typical soy milk:http://nutritiondata.self.com/facts/leg ... cts/8010/2
Of course different soy milks can very a little but in a case like this the omega 6/3 profile is way out of balance. In fact, the omega 6 is about 8x that of the omega 3 (1419 mg vs. 182 mg.). This doesn't make for a healthy food, especially if you drink a fair amount of it on a daily basis. Here the sat. fat profile is low but consuming products like this works against you if you are trying to achieve what is considered a healthy omega 6:3 profile of 2:1. (This would be the kind of profile a person might have from consuming a fish-based diet.)
Science is starting to tell us now (through various studies and research) that the typical western diets are running anywhere from 20:1 to 50:1 from an omega 3/6 standpoint. That's way out of balance
The latest thinking is that this kind of imbalance leads to all kinds of inflammatory issues and could be a contributing factor to many illnesses, including AI diseases such as MS.
An interesting study was published fairly recently about using a novel therapy of a nutraceutical formula of omega-3 and omega-6 PUFA to treat RRMS patients. The one disadvantage with the study was the study size and the fact that a sizable number dropped out of the study but the results obtained for the proof of concept study were kind of stunning. Here's the study:www.ncbi.nlm.nih.gov/pmc/articles/PMC3641495/
Basically, the treatment involved administering a balanced omega 3/6 formula with some Vitamins thrown in for antioxidant power on a daily basis (PLP 10 treatment). This treatment was compared to a placebo group. The PLP 10 population had 64% relative rate reduction in relapses as compared to the placebo group. The PLP group also (which is really significant) had only a 10% likelihood of disability progression (after a 2 year period) as compared to the placebo group which had 58% probability. That is a big difference in the likelihood of disability.
I'd really like to see more controlled studies on the nutritional benefits of balancing omega 3/6. Hopefully there will be a follow up study here with a bigger population. This to me speaks to the anecdotal info out there about why certain diets work and others don't and also why some diets work for some people but don't work for others. For example, it's very possible for two people to follow the same basic diet program but also have two completely different omega 3/6 profiles, based on the choices they make (how they balance the components of the diet) and the type of supplements they take.
As I see more studies and data like this, it more emphasizes to me that what's really important from a nutritional standpoint is to obtain the best possible omega 3/6 balance in the range of 1:1 to 1:2, no matter how concerned you are about your overall saturated fat levels. In other words, I would give foods like soy milk the boot.