Grade: A (Strong Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Vitamin A	Acute promyelocytic leukemia (treatment, All-trans retinoic acid)
Grade: B (Good Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Boswellia	Brain tumors
Selenium	Prostate cancer prevention
Grade: C (Unclear or Conflicting Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Aloe	Cancer prevention
American pawpaw	Cancer treatment
Antineoplastons	Cancer
Arabinoxylan	Cancer (various types)
Arginine	Gastrointestinal cancer surgery
Astragalus	Cancer
Baikal skullcap	Cancer
Bee pollen	Cancer treatment side-effects
Bitter melon	Cancer
Black cohosh	Breast cancer
Black tea	Cancer prevention
Bromelain	Cancer
Bupleurum	Hepatocellular carcinoma (prevention)
Calcium	Colorectal cancer
Cat's claw	Cancer
Chaparral	Cancer
Chlorophyll	Cancer (laser therapy adjunct)
Chrysanthemum	Cancer (pre-cancerous lesions)
Coenzyme Q10	Breast cancer
Copper	Cancer
Cranberry	Cancer prevention
Dandelion	Cancer
DHEA	Cervical cancer
Echinacea	Cancer
Essiac	Cancer
Evening primrose oil	Breast cancer
Flaxseed and flaxseed oil	Breast cancer (flaxseed, not flaxseed oil)
Folate	Cancer
Gamma linolenic acid	Cancer treatment (adjunct)
Garlic	Cancer
Germanium	Multiple myeloma
Ginkgo	Gastric cancer
Ginseng	Cancer prevention
Grape seed	Cancer
Green tea	Cancer prevention
Hoxsey formula	Cancer
Hydrazine sulfate	Cancer treatment
Iodine	Cancer
Jiaogulan	Cancer
Lavender	Cancer (perillyl alcohol)
Lutein	Cancer
Lycopene	Breast cancer prevention
Maitake mushroom	Cancer
Melatonin	Cancer treatment
Milk thistle	Cancer prevention
Mistletoe	Cancer
Modified citrus pectin	Prostate cancer
Oleander	Cancer
Omega-3 fatty acids, fish oil, alpha-linolenic acid	Cancer prevention
PC-SPES	Prostate cancer
Perillyl alcohol	Cancer
Podophyllum	Uterine cancer
PSK	Colorectal cancer (adjuvant)
Psyllium	Colon cancer
Red clover	Prostate cancer
Rehmannia	Aplastic anemia (adjuvant)
Reishi mushroom	Cancer
Resveratrol	Cancer
Rhubarb	Aplastic anemia
Riboflavin	Esophageal cancer (prevention and treatment)
Sage	Lung cancer prevention
Saw palmetto	Prostate cancer
Seaweed, kelp, bladderwrack	Cancer
Selenium	Cancer treatment
Shark cartilage	Cancer
Shiitake	Cancer (chemotherapy adjunct)
Slippery elm	Cancer
Soy	Breast cancer prevention
Strawberry	Colorectal cancer prevention
Sweet annie	Cancer
Thiamin	Cancer
Thymus extract	Cancer
Turmeric	Cancer
Vitamin A	Breast cancer
Vitamin B12	Breast cancer
Vitamin B6	Lung cancer
Vitamin C	Cancer prevention
Vitamin D	Breast cancer prevention
Vitamin E	Bladder cancer
Grade: D (Fair Negative Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Beta-carotene	Cancer
Bitter almond	Cancer (Laetrile)
Flaxseed and flaxseed oil	Prostate cancer (flaxseed, not flaxseed oil)
PSK	Breast cancer (adjuvant)
Selenium	Colorectal cancer prevention
Vitamin A	Lung cancer
Vitamin B12	Lung cancer
Vitamin D	Prostate cancer
Vitamin E	Cancer prevention (general)
Vitamin K	Hepatocellular carcinoma (recurrent hepatocellular carcinoma prevention)
Traditional or Theoretical Uses which Lack Sufficient Evidence
Therapy	Specific therapeutic Use(s)
Acacia	Cancer
Acai	Cancer
Acerola	Cancer
Aconite	Cancer
African wild potato	Cancer
Agrimony	Anti-tumor agent
Alfalfa	Breast cancer
Alizarin	Leukemia
Alkanna	Cancer
Aloe	Leukemia
Alpinia	Cancer
American pennyroyal	Cancer
Angostura	Cancer
Anise	Cancer
Antineoplastons	Acute lymphocytic leukemia
Aortic acid	Cancer
Arginine	Cancer
Arnica	Cancer
Asarum	Cancer
Ashwagandha	Adaptogen
Asparagus	Antitumor
Astaxanthin	Cancer
Astragalus	Leukemia
Avocado	Cancer
Babassu	Leukemia
Bael fruit	Tumors
Bamboo	Cancer prevention
Banaba	Antitumor
Barberry	Antimutagenic
Barley	Cancer
Bay leaf	Cancer
Bellis perennis	Breast cancer
Berberine	Cancer
Beta-carotene	Multiple myeloma
Beta-glucan	Antitumor
Bilberry	Angiogenesis (blood vessel formation)
Biotin	Cancer
Birch	Cancer
Bitter melon	Antitumor
Bitter orange	Cancer
Black cohosh	Cancer
Black currant	Tumors (hemorrhoidal)
Black tea	Cancer multidrug resistance
Blackberry	Cancer
Blessed thistle	Cancer
Bloodroot	Cancer
Blue cohosh	Cervical dysplasia (abnormal
Blue flag	Cancer
Borage seed oil	Cancer
Boron	Breast cancer
Boswellia	Cancer
Bovine colostrum	Cancer
Bromelain	Cancer prevention
Buckshorn plantain	Leukemia
Bulbous buttercup	Antimutagenic (inhibits mutations)
Bupleurum	Cancer
Burdock	Cancer
Calamus	Cancer
Calcium	Medullary thyroid cancer (diagnosis)
Calendula	Liver cancer
Cardamom	Antimutagenic
Carob	Cancer
Carrot	Cancer
Cascara sagrada	Leukemia
Cat's claw	Cervical dysplasia
Celery	Cancer
Chamomile	Cancer
Chaparral	Antitumor
Chia	Cancer
Chickweed	Cancer
Chicory	Breast cancer
Chlorophyll	Cancer prevention
Choline	Cancer prevention
Chondroitin sulfate	Breast cancer
Chrysanthemum	Cancer
Cinnamon	Antitumor
Clay	Cancer
Cleavers	Cancer (bone marrow)
Clove	Antimutagenic
Codonopsis	Cancer
Coenzyme Q10	Cancer
Coleus	Cancer
Colloidal silver	Cancer
Comfrey	Cancer
Copper	Cancer
Cordyceps	Cancer
Cramp bark	Cancer
Cranberry	Cancer treatment
Creatine	Breast cancer
Dandelion	Breast cancer
Danshen	Antitumor
Date palm	Cancer
Devil's claw	Skin cancer (topical)
Devil's club	Cancer prevention
DHEA	Bladder cancer
DMSO	Cancer
Dogwood	Cancer
Dong quai	Anti-tumor
Elder	Cancer
Elecampane	Cancer
Emu oil	Tumors
English ivy	Cancer
Essiac	Head/neck cancers
Eucalyptus oil	Cancer prevention
Euphorbia	Cancer
Evening primrose oil	Melanoma
Eyebright	Cancer
Fennel	Cancer preventative (in combination with antioxidants)
Fenugreek	Cancer
Feverfew	Breast cancer
Fig	Cancer
Flaxseed and flaxseed oil	Colon cancer
Folate	Colorectal adenoma
Fo-ti	Cancer
Gamma linolenic acid	Cancer
Gamma oryzanol	Cancer
Garcinia	Antitumor
Garlic	Bladder cancer
Germanium	Breast cancer
Ginger	Cancer
Ginkgo	Anti-tumor
Ginseng	Adaptogen
Glucosamine	Cancer
Goldenrod	Antitumor
Goldenseal	Astrocytoma
Gotu kola	Bladder lesions
Grape seed	Breast cancer
Grapefruit	Cancer
Green tea	Adenocarcinoma
Ground ivy	Cancer
Guggul	Tumors
Gymnema	Cancer
Hawthorn	Cancer
Hibiscus	Cancer
Holy basil	Adaptogen
Honey	Antitumor
Hops	Cancer (breast
Horny goat weed	Cancer
Horseradish	Antimutagenic
Horsetail	Cancer
Hoxsey formula	Lymphoma
Hyssop	Cancer
Jequirity	Antitumor
Juniper	Cancer
Katuka	Cancer
Kava	Cancer
Kinetin	Cancer
Kiwi	Cancer prevention
Krebiozen	Bladder cancer
Kudzu	Cancer
Lactobacillus acidophilus	Cancer
Lemon balm	Cancer
Lemongrass	Antineoplastic (antitumor)
Licorice	Antitumor
Lime	Cancer
Lingonberry	Cancer
Lousewort	Cancer
Lutein	Breast cancer
Lycopene	Bladder cancer
Maca	Adaptogen
Macrobiotic diet	Cancer
Maitake mushroom	Antitumor
Mangosteen	Cancer
Marshmallow	Cancer
Meadowsweet	Antineoplastic (tumor inhibiting)
Melatonin	Cancer prevention
Milk thistle	Bladder cancer
Modified citrus pectin	Cancer
Morus nigra	Cancer
MSM	Cancer
Mugwort	Cancer
Muira puama	Cancer
Mullein	Anti-tumor
Neem	Antimutagenic
Niacin	Cancer prevention
Noni	Cancer
Nux vomica	Cancer
Omega-3 fatty acids, fish oil, alpha-linolenic acid	Leukemia
Onion	Cancer
Oregano	Antimutagenic
Pantethine	Anticarcinogenic
Passion flower	Cancer
PC-SPES	Breast cancer
Peppermint	Cancer
Perilla	Cancer
Perillyl alcohol	Glioblastoma
Phosphates, phosphorus	Cancer
Podophyllum	Breast cancer
Pokeweed	Cancer
Polypodium leucotomos extract and anapsos	Cancer
Propolis	Cancer
PSK	Antineoplastic
Psyllium	Cancer
Pycnogenol	Cancer prevention
Pygeum	Prostate cancer
Quassia	Leukemia
Quercetin	Brain tumors
Raspberry	Antimutagenic (inhibiting mutations)
Red clover	Breast cancer prevention
Red yeast rice	Cancer
Rehmannia	Cancer pain (bone cancer)
Reishi mushroom	Adaptogen
Resveratrol	Anti-tumor agent
Rhubarb	Cancer
Riboflavin	Cervical cancer
Rooibos	Cancer
Rosemary	Cancer prevention
Saccharomyces boulardii	Cancer
Safflower	Prostate cancer
Sage	Antitumor
Saw palmetto	Cancer
Scotch broom	Cancer
Sea buckthorn	Cancer
Seaweed, kelp, bladderwrack	Lymphoma
Selenium	Esophagus cancer prevention
Shark cartilage	Kaposi's sarcoma
Shiitake	Antitumor
Skunk cabbage	Cancer
Slippery elm	Anti-tumor
Soy	Cancer prevention (general)
Spirulina	Cancer prevention
Spleen extract	Cancer
Squill	Cancer
St. John's wort	Cancer
Stevia	Antimutagenic
Stinging nettle	Cancer
Strawberry	Cancer
Sweet almond	Bladder cancer
Sweet annie	Leukemia
Sweet basil	Cancer
Tamanu	Cancer
Tangerine	Cancer
Taurine	Breast cancer
Tea tree oil	Melanoma
Thiamin	Myelodysplastic syndrome
Thyme	Cancer
Thymus extract	Colorectal cancer
Tribulus	Cancer
Usnea	Cancer
Vitamin B12	Malignant tumors
Vitamin B6	Cancer prevention