Hemp Can Now Be Sold As a Food in Australia (and It’s Super Good for You)
Rachel Burton, 14 Nov 17
       

You can eat and cook with whole hemp seeds (right), hearts (centre) and ground seed (left). marekuliasz/shutterstock

Most of you know hemp, or marijuana, as a drug to be smoked. Laws restrict its use and sale in Australia and other countries.

From November 12 2017, changes to the Food Standards Code to permit the sale of low-psychoactive hemp seed as a food are effective in Australia. Jurisdictions will now need to amend respective legislation to support the legal sale of low-THC hemp seed foods.

And, despite the slightly off-putting label “industrial hemp” used to distinguish it from medical marijuana, evidence shows these seeds are very good for you.

Fast facts about edible hemp

In order to be considered a food ingredient hemp seed has to contain less than 0.5% of the psychoactive ingredient tetrahydrocannabinol (THC). It’s called low-THC hemp.

Industrial hemp naturally has low levels of THC, which is made by the plant (probably as a sunscreen or to deter insects from eating it). But levels will have to be monitored regularly. This may necessitate setting up a dedicated screening capability in some Australian states, as the crop becomes established.

Hemp seeds are actually like a little nut, with a crisp shell and a soft heart. Mostly you will find them for sale in health food shops. Typically it will be the hearts you can buy, already released from the shells; they have a mild nutty flavour.

Hemp seeds contain around 25% protein, up there with soybean and even better than quinoa. Most of the essential amino acids are present, plus valuable minerals and amounts of vitamin E.

A rich source of ‘good’ oils

Hemp seed hearts are also rich in oils, and one of the best food sources with a relatively high ratio of omega 6 to omega 3 polyunsaturated fats. In hemp seeds, this ratio is around 3:1, similar to that seen in flaxseeds (also known as linseed) and olive oil.

Now we can add hemp seeds and oil to the relatively limited list of good plant sources of these fats. Nutritionists increasingly highlight the importance of balancing the amounts of omega-6 and omega-3 polyunsaturated fats in our diets.

Hemp oil can be cold-pressed out of the seeds. It is likely that the oil itself will also become more readily available as a product in Australia now the law has changed. However, this oil often contains chlorophyll, the group of pigments in plants that gives them their green colour. The oil is quite unstable and oxidises quite quickly. To slow this rancidity process down, the oil should be stored in a brown bottle away from direct sunlight.

Still some questions

It is less clear what types of polysaccharides or dietary fibre hemp seeds contain, and what our microbiome will make of hemp seeds when they get to the lower reaches of our digestive system. Will the microbes there be able to ferment this seed material?

What is the human microbiome?

Fermentation of foods in the lower intestine can produce protective anti-inflammatory byproducts. Hemp may be able to contribute to this.

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