Agricultural, textile or industrial hemp is a variety of Cannabis sativa with low content of Delta-9 tetrahydrocannabinol (THC). Although both are the same plant (Sawler 2015), the term “Hemp” is used for the agricultural variety with industrial uses, textiles and foodstuffs leaving the denomination “Cannabis” to the variety that is cultivated for recreational purposes. Agricultural hemp must contain less than 0.2% to 0.3% of THC to be considered legal depending on the country (Avico 1985, Leson 2001, Hemp is used on textile industry for manufacturing of fabrics, paper, insulating elements, motor fuel, paint and cosmetics, among other uses.
In human food the seeds (cannons), whole, raw or roasted and ground in the form of flour or its oil are used. In 100 grams there are 32 g of protein (all essential amino acids), 49 g of fat (practically all polyunsaturated, linoleic and linolenic acids, ω-3 and ω-6), 5 g of carbohydrates (4 g of fiber), vitamins and minerals with a total of 586 calories. In Chinese medicine it is used on the treatment of constipation (Cheng 2011)
It would be advisable to garantee the origin of the seeds and the quality of supplier because there are three possible sources of higher risk with its consumption: 1- Confusion at selection of plants with a higher content of THC can lead to positivity on drug testing that would result in poisoning (Fortner 1997, Lehmann 1997, Meier 1997, Alt 1998, Chinello 2016). 2- A likely bacterial contamination has led to food poisoning (Willis 2009, Stöcker 2011) 3- Hemp is a plant that has been used as a "soil cleaner", because of its high capacity of metal and toxin absorption. Its content in Cadmium, Zinc, Iron and other contaminants may be high (Campbell 2002, Mihoc 2012).There is no evidence of its effectiveness on preventing and treating cardiovascular disease, diabetes, obesity, overweight and others (Kaul 2008). At latest update no published data were found on its excretion into breastmilk. Provided a reliable source is available, moderate consumption during breastfeeding would pose little or no risk. Hemp is not considered as an essential supplement whenever a healthy balanced diet is followed.
Fuente: http://www.e-lactancia.org/breastfeeding/hemp/product/