Oat straw comes from the unripened Avena sativa plant, which is commonly grown in Northern Europe and North America.

As an extract, oat straw is often sold as a tincture but can also be found in powder and capsule form.

It’s believed to offer numerous health benefits, such as reduced inflammation and improved brain function and mood.

It’s high in iron, manganese, and zinc. The extract is claimed to offer many health benefits, including improvements in brain health, insomnia, stress, and physical and sexual performance.