Cancer cells cannot thrive in an alkaline environment, so if you prevent the acidic state of your body, you will successfully prevent cancer as well as other health issues.
One of the best natural and nutritious alkaline- booster is wheatgrass. It is the young grass of the wheat plant, Triticum aestivum, and grows in the U.S. and Europe. It is a much cheaper variant to grow it on your own.
Only a week after you germinate the seeds, you can already harvest it. Its taste is extremely bitter. Therefore, you should keep it exposed to low sunlight, and harvest it immediately after the germinating stage, as its taste is the sweetest then. Namely, if it is directly exposed to sunlight, its taste will be more bitter.