HI Kelly
I was introduced to Enzyme Therapy last year and currently my dd1 is on it. I find it useful as the enzymes helped to break down the foods that the children eat to make it easily absorbed into the body.
If you want to know more about Enzyme Therapy, I recommend the books written by Karen DeFelice. She wrote:
1. Enzymes: Go with your gut (more practical guidelines for digestive enzymes)
2. Enzymes for Autism and other Neurological Conditions
I bought the books at Kinokuniya.
Is Enzymes Therapy expensive? I think it depends on what and how much supplements one buys. Then again, nothing is cheap. But I see it as another form of intervention and if it helps my children, then I will do what I can within my means to help my children get better and healthier.
For info, dd1 was diagnosed with Auditory Processing Disorder. Ever since dd1 is on enzymes, I noticed that she is more in control of her emotions. It could be that she is older now and so a little more matured, but I also believe the enzymes supplements helped in balancing her neurological conditions as well.
From the products that you mentioned, I'm not sure that Efalax Omega is an "enzyme" but it's omega related products. As for memory recall food supplements, you need to check out the product information and read the labels.
It took me a about a year - reading the books by Karen Felice and researching on the Internet to know more.
For my dd's enzymes, I get them from a shop in Telok Blangah. The lady owner of the shop is very helpful and knowledgeable. She will be in the best position to advise you. For info, I am not related to her nor do I gain from recommending her, but my family, esp my dd's condition has improved so much because of her sharing.
Let me know if you need her contact.