In all but a few studies, lower doses of CBD (10 milligrams per kilogram, mg/kg, or less) improved some symptoms of anxiety. Higher doses (100 mg/kg or more) exhibited virtually no effect.
If you are thinking about using CBD oil to treat a health condition, be sure to speak with your healthcare provider to ensure that it is the right option for you.
Since some CBD oils contain trace amounts of THC, you should avoid driving or using heavy machinery when taking CBD oil, particularly when first starting treatment or using a new brand.
As CBD grows in popularity, so does the research on it but there are currently few clinical studies on the effects of CBD oil. As such, some of these claims are better supported by studies than others.
In an analysis of 14 published studies (nine involving animals and five involving humans), scientists with the University of Montreal concluded that CBD showed promise in treating people with opioid, cocaine, or psychostimulant addiction.
Although hemp hearts do not contain any THC at all, the shells do have trace amounts (below 0.3% THC).
Hemp is grown for non-drug use because it contains only trace amounts of THC (the psychoactive component of the marijuana plant that is responsible for getting a person high).
There are three different species of plants that come from the Cannabis genus (in the Cannabaceae family). These include Cannabis sativa, Cannabis indica, and Cannabis ruderalis.
Verywell / Anastasiia Tretiak
When eating hemp seeds, some experts suggest starting out slow (such as 1 teaspoon) then gradually working up to more as tolerated, particularly for those with digestive problems.
Hemp seeds can be eaten raw, roasted, or cooked with other foods. Hempseed oil has been used as food or made into medicine for thousands of years in China.
Hemp seeds are grown in many different countries, but the hemp that is grown in Canada is said to produce a great tasting, high-quality seed. Look for products that have been tested in the lab for purity and potency.
Rezapour-Firouzi S, Arefhosseini SR, Mehdi F, et al. Immunomodulatory and therapeutic effects of Hot-natured diet and co-supplemented hemp seed, evening primrose oils intervention in multiple sclerosis patients. Complement Ther Med 2013;21(5):473-80.
Girgih AT, Alashi AM, He R, et al. A novel hemp seed meal protein hydrolysate reduces oxidative stress factors in spontaneously hypertensive rats. Nutrients. 2014;6(12):5652-66. View abstract.
Jin S, Lee MY. The ameliorative effect of hemp seed hexane extracts on the Propionibacterium acnes-induced inflammation and lipogenesis in sebocytes. PLoS One. 2018;13(8):e0202933. View abstract.
Special Precautions and Warnings
7 CFR 990: Establishment of a Domestic Hemp Production Program. Federal Register: 2021-00967. January 19, 2021. Available at: https://www.federalregister.gov/d/2021-00967 (Accessed 3/11/2021).
House JD, Neufeld J, Leson G. Evaluating the quality of protein from hemp seed (Cannabis sativa L.) products through the use of the protein digestibility-corrected amino acid score method. J Agric Food Chem. 2010;58(22):11801-7. View abstract.
Montserrat-de la Paz S, Marín-Aguilar F, García-Giménez MD, Fernández-Arche MA. Hemp (Cannabis sativa L.) seed oil: analytical and phytochemical characterization of the unsaponifiable fraction. J Agric Food Chem. 2014;62(5):1105-10. View abstract.
Girgih AT, Alashi A, He R, Malomo S, Aluko RE. Preventive and treatment effects of a hemp seed (Cannabis sativa L.) meal protein hydrolysate against high blood pressure in spontaneously hypertensive rats. Eur J Nutr. 2014;53(5):1237-46. View abstract.