Limonene can be found in the peel of citrus fruit. Many years ago it was shown to completely regress breast tumors in rats.
There has been no official human trials even if recent studies showed that limonene -taken as food -is taken up extensively by human breast tissue and may reduce cancer cell growth.
It may also have high beneficial effects on prostate cancer.
Good organic marmalade [which can be home-made is highly recommended. If any of the readers are specialist in making marmalade then please share with us,
Supplements containing this:
https://www.iherb.com/pr/Jarrow-Formulas-d-Limonene-500-mg-240-Softgels/85545
https://www.betterlife.com/product/d-limonene-1000-mg/jarrow/33082
medicine from harold jitschak bueno de mesquita 