Avena sativa plant, better known as the oat plant, has been used for centuries as both a food and a herb. It is the green leafy parts of the oat plant which are used to make our Avena sativa tincture, rather than oat grain which is commonly used as food. Avena sativa herb contains a number of plant chemicals including a substance known as gramine. The amount of these plant substances is highest just as the Avena sativa plant is about to break into flower and the seeds begin to form.
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