The science is now showing that soya is not the nutritional magic potion of the 21st Century that we all once thought it was.
Let's dive straight in.
For starters, soya GM and heavily sprayed with pesticides, and, as at 2013/14 when I wrote the original of this page, 91% of soya grown in the US alone was GM, with 80% of the GM crop sprayed with Roundup so crop production could be improved by killing the weeds.
Unlike the Asian culture, where people eat small amounts of non-GM fermented soya bean products, western food companies separate the un-fermented soya bean into two golden commodities - protein and oil. And here’s apparently where the problem lies. Studies show that consuming un-fermented soya is linked to digestive distress, immune-system breakdown, thyroid dysfunction, cognitive decline, reproductive disorders, infertility, cancer and heart disease. So says Dr. Kaayla Daniel, author of ‘The Whole Soya Story’.
Here’s another huge fact and related to our horses – a staggering 80% of the world’s soya is apparently grown for farm animal feed, which just for the record is also why soya production is contributing to deforestation (we've all seen the desperately sad travesty that is the orangutan natural habitat displacement in order to clear continent-sized tracts of land to grow soya). So, as well as the fact that soya is both GM, soaked in chemicals, and continues to make thousands of orangutans homeless, here are some more interesting facts as to why I’d rather not feed it to my horses.
- Soya oil is rich in long chain fatty acids (the unhealthy ones) and contains predominantly polyunsaturated fats (the inflammatory fats), making it prone to rancidity. Worse, the oil is chemically extracted and highly refined using toxic levels of aluminium and manganese, being processed by acid washing in aluminum tanks, which can leach high levels of aluminum into the final soya product.
- GM soya has been linked to an increase in allergies. The plants contain genes from a bacteria that produces a protein that has never been part of any food supply. Disturbingly, the only published human-feeding study on GM foods verified that the gene inserted into GM soya transfers into the DNA of our gut bacteria and continues to function there. This means that years after we stop eating GM soya, we may still have a potentially allergenic protein continuously being produced in our intestines. And if it’s happening to us, it's happening to our horses – if your horse presents with allergenic responses, it might be worth checking your feedbag to see if soya oil or protein is listed.
- Soya contains natural toxins known as anti-nutrients, some of which interfere with the crucial protein-digesting enzymes.
- Soya contains hemagglutinin, a clot-promoting substance that causes red blood cells to clump together. These clumped cells are unable to properly absorb and distribute oxygen to the body’s cells.
- Soya contains goitrogens, substances that block the synthesis of thyroid hormones and interfere with iodine metabolism.
- Soya contains phytates which bind to metal ions, preventing the absorption of certain minerals including calcium, magnesium, iron and zinc, all of which are essential for our horses biochemistry.
Beggars belief I know. For so many reasons.
So let's go back to the beginning, way before the mass-production of processed feedbags which have done nothing but make our horses sicker, and remind ourselves of what we should actually be feeding our horses.