Glycine max, Isoflavones
Part of the plant used: beans
Soy is a legume cultivated in most parts of the world. In fact, it is one of the most cultivated plants in the world. Soy is an important source of plant protein, and plays a more and more important role in the human diet. Tofu, tempeh, soy milk and beans are some of the main dietary sources of soy. The protein content of various soy products can considerably vary.
Soy contains several active compounds: choline, lecithin and isoflavones. Soy proteins should be used preferably, because soy extracts do not appear to be very effective. One gram of soy protein contains 1 to 3 mg of isoflavones. Those isoflavones are considered phytoestrogens.
Recommended intake: 20 to 50 grams daily of soy protein
Recommended intake: 20 to 60 g of soy proteins (providing 34 to 76 mg of isoflavones) daily
Recommended intake: 40 g of isoflavone-rich (2-2,5 mg/g) soy protein
Amount of isoflavones found in food:
250 ml of soy beverage - 20 mg
50 g of roasted soy beans - 64 mg
In 2004, Canada adopted new regulations that control the manufacturing, packaging, labeling and importing of natural health products. The new regulations also include an adverse reaction reporting system. Products that conform to the regulation's criteria are identified with a natural product number (NPN) and can be legally sold in Canada. This number indicates that the product meets specific criteria for safety and purity, not that it is effective for any indication.
Medicinal plant contents vary naturally from plant to plant - just as fruits from the same package may vary in taste and texture. There is no standard to measure the active content of each plant. Thus, efficacy of natural products should be expected to vary from brand to brand as well as from bottle to bottle of the same brand.
For more information about the Natural Health Products Regulations, or to check if a product has been assessed, visit the Health Canada website at www.hc-sc.gc.ca/dhp-mps/prodnatur/index-eng.php.
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The patient information leaflets are provided by Vigilance Santé Inc. This content is for information purposes only and does not in any manner whatsoever replace the opinion or advice of your health care professional. Always consult a health care professional before making a decision about your medication or treatment.