Celery contains a number of nutrients. It is high in vitamin A and contains vitamin C, vitamin B1, vitamin B2, calcium, iron, magnesium, phosphorus and potassium.
In animal studies, celery juice has been shown to significantly lower cholesterol by increasing the production of bile acid.
With regard to cancer, a significant substance found within the essential oil of celery seeds is perillyl alcohol. Animal studies have yielded significant results, indicating the usefulness of perillyl alcohol in regressing pancreatic, stomach, colon, skin, mammary and liver tumours.
The strength of this research has prompted the National Cancer Institute to conduct human (phase II) clinical trials to determine the effectiveness of perillyl alcohol in halting breast cancer.
Perillyl alcohol can be isolated from the essential oils of several plants including cherries, lavender, peppermint, spearmint, celery seeds, sage, cranberries, lemongrass, ginger grass, savin juniper, Conyza newii, caraway, Perilla frutescens, and wild bergamont.