At his NOHA lecture, April 12, 2000, Frank T. Orthoefer, PhD, told us many ways in which lecithin can help in our pursuit of optimal health.
"The form of the lecithin molecules protects the fatty acids. Dr. Orthoefer points out that lecithin granules can be stored without refrigeration for lengthy periods, whereas pure oils containing the unsaturated fatty acids can turn rancid very rapidly."
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My family has been using the Lewis Labs brand of lecithin granules for years. To get the greatest benefit from lecithin, google for the Dr. Rinse formula and add in the other ingredients.