^ Jump up to: a b c This paper begins with a history of hemp use and then describes how hemp was constructed as a dangerous crop in the U.S. The paper then discusses the potential of hemp as an alternative crop. Luginbuhl, April M. (2001). "Industrial hemp (Cannabis sativa L): The geography of a controversial plant". The California Geographer. 41. California Geographical Society. pp. 1–14. hdl:10211.2/2738. Hemp contains less than 1% THC, or tetrahydrocannabinols, the psychoactive property in marijuana. In other words, smoking hemp cannot create a 'high.' ... The dense growth of hemp eliminates other weeds.... The best growing technique for hemp, planting 300 to 500 plants per square meter, also helps authorities easily tell the hemp from marijuana, which is a plant that is less densely cultivated. (Roulac 1997; 149).
Hemp was used extensively by the United States during World War II to make uniforms, canvas, and rope.[144] Much of the hemp used was cultivated in Kentucky and the Midwest. During World War II, the U.S. produced a short 1942 film, Hemp for Victory, promoting hemp as a necessary crop to win the war.[143] U.S. farmers participated in the campaign to increase U.S. hemp production to 36,000 acres in 1942.[145] This increase amounted to more than 20 times the production in 1941 before the war effort.[145]
Shelled hemp seeds are becoming a popular dietary supplement because of their high protein content and healthful fatty acids. Hemp seeds come from the same plants, Cannabis sativa or C. indica, that produce marijuana, although the plants are cultivated and processed differently so that hemp seeds contain very low levels of psychoactive cannabinols such as delta-9-tetrahydrocannabinol, or THC. Shelled hemp seeds are generally safe, but some people may experience some undesired side effects.

Hemp seed is a wonderful source of dietary fiber, both insoluble and soluble, in a ratio of 4:1, says a report published in the Biosystems Engineering Journal by a team of researchers from Ankara University, Turkey. Insoluble fiber is best for bulking up the stool and easing the passage through the digestive tract, thereby reducing symptoms of both diarrhea and constipation. Soluble fiber, on the other hand, is responsible for slowing glucose absorption and increasing the digestive and gastric juices, which further ease the passing of bowels. Soluble fiber also stimulates bile juice, which reduces the amount of LDL cholesterol (bad cholesterol) in the body. Overall, the effects of these two types of fiber on the body can help you avoid a number of mild to serious health conditions.

Jeong, M., Cho, J., Shin, J.-I., Jeon, Y.-J., Kim, J.-H., Lee, S.-J. … Lee, K. (2014, July 3). Hempseed oil induces reactive oxygen species- and C/EBP homologous protein-mediated apoptosis in MH7A human rheumatoid arthritis fibroblast-like synovial cells [Abstract]. Journal of Ethnopharmacology, 154(3), 745–752. Retrieved from https://www.sciencedirect.com/science/article/pii/S0378874114003511?via%3Dihub
The recommended minimum daily intake of Shelled Hemp Seeds is a 42 grams (4 heaping tablespoons) serving. Larger individuals or those suffering with chronic health conditions such as arthritis, high blood pressure, high cholesterol, cardio vascular disease, acne, eczema, psoriasis, diabetes, circulation problems, intestinal problems, constipation, obesity or prostate problems (to name a few) may want to consider taking 55 grams (5 to 6 heaping tablespoons) a day.
The etymology is uncertain but there appears to be no common Proto-Indo-European source for the various forms of the word; the Greek term kánnabis is the oldest attested form, which may have been borrowed from an earlier Scythian or Thracian word.[9][10] Then it appears to have been borrowed into Latin, and separately into Slavic and from there into Baltic, Finnish, and Germanic languages.[11] Following Grimm's law, the "k" would have changed to "h" with the first Germanic sound shift,[9][12] after which it may have been adapted into the Old English form, hænep.[9] Barber (1991) however, argued that the spread of the name "kannabis" was due to its historically more recent plant use, starting from the south, around Iran, whereas non-THC varieties of hemp are older and prehistoric.[11] Another possible source of origin is Assyrian qunnabu, which was the name for a source of oil, fiber, and medicine in the 1st millennium BC.[11]
The process to legalize hemp cultivation began in 2009, when Oregon began approving licenses for industrial hemp.[97] Then, in 2013, after the legalization of marijuana, several farmers in Colorado planted and harvested several acres of hemp, bringing in the first hemp crop in the United States in over half a century.[98] After that, the federal government created a Hemp Farming Pilot Program as a part of the Agricultural Act of 2014.[99] This program allowed institutions of higher education and state agricultural departments to begin growing hemp without the consent of the Drug Enforcement Agency (DEA). Hemp production in Kentucky, formerly the United States' leading producer, resumed in 2014.[100] Hemp production in North Carolina resumed in 2017,[101] and in Washington State the same year.[102] By the end of 2017, at least 34 U.S. states had industrial hemp programs. In 2018, New York began taking strides in industrial hemp production, along with hemp research pilot programs at Cornell University, Binghamton University and SUNY Morrisville.[103]
In the UK, the Department for Environment, Food and Rural Affairs treats hemp as a purely non-food crop, but with proper licensing and proof of less than 0.2% THC concentration, hemp seeds can be imported for sowing or for sale as a food or food ingredient.[19] In the U.S., imported hemp can be used legally in food products and, as of 2000, was typically sold in health food stores or through mail order.[16]
Hemp seeds, or hemp hearts, are the seeds of the hemp plant, Cannabis sativa. Technically a nut, these small, crunchy seeds are safe to consume and contain only traces of a psychotropic chemical, called THC, the primary psychoactive compound in cannabis which is known to cause euphoria. These seeds have a soft, creamy filling which has a mild, nutty flavor, and they are usually eaten raw.