Tilia platyphyllos, Tilia cordata
Parts of the plant used: flowers
The linden tree, which has a very long lifespan, can grow to a height of 15 to 23 meters. The flowers are yellowish white and have five petals. They contain several active compounds including quercetin and volatile oils.
Linden is usually ingested as a warm beverage.
No more than 2 to 4 grams per day, regardless of form.
Linden infusion - 1 cup is obtained by infusing 2 grams of linden in 150 ml of boiling water
Tincture - 2 to 4 ml (1:5 in 45 % alcohol)
Fluid extract - 1 to 2 ml (1:1 in 25 % alcohol)
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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