HERBS & SPICES AS SUPPLEMENTS:

Psycho-Social Interventions for Cancer. section 13

by P Henry 21Mar26

Throughout the world since ancient times, foods, spices and herbs were used singularly or combined as treatments for cancer[1]. Egyptian papyrus and earlier Sanskrit and Chinese texts record these case studies[2], treatments that were prescribed by experienced practitioners[3]. Most of this therapeutic wisdom listing the administered quantity/quality of plants has been lost, some subsumed, by the newer pharmaceutic companies, or continued by traditional herbalists.  Sometimes these herbal specialists, often women, were marginalised and intimidated, accused of witchcraft malpractices [4].

Medical and pharmaceutic industries use precise combinations of chemicals for medicines and regulate their use measured by their own tests. Yet their gold standard test, the RCT (Random Controlled Trial) can be biased and manipulated[5] to produce problems beyond side effects. Their applications are often limited by designation of the study’s cohorts and qualities.

Natural supplements, resourced locally, are less expensive than pharmaceutics but have problems with standardisation, because plants vary regionally and individually. Their measurements are often qualitative and cumulative.

While unbiased and detailed use of medicines is important to outcomes, treatments need to be adjusted to individual needs[6]. Cancers, often manifest heterogeneously, vary with individuals, require specific treatments. Pharmaceutics or supplements need tailoring, combined with individualised needs and health activities[7], while dealing with essential biological needs such as mitochondria activity [8].

Many supplements[9] are applied to different cancer types. Some are found in your kitchen such as black pepper, garlic, red chilli, and ginger. Using these natural supplements for cancer treatment should be done through skilled practitioners aware of their specific applications[10]. The purposes of supplements are also to reduce anxiety, increase QoL, modulate signal pathways, lessen adverse side effects of pharmaceutics, enhance the immune system and reduce toxicity while inducing appropriate apoptosis.

The anti-carcinogen treatments with herb & spice supplements vary according to the requirements. Some enhance the immune system, reduce inflammation, effect signalling pathways[11], have antioxidant effects, antiangiogenic properties or are anti-proliferative[12].  

Cancers are multifactorial, having environmental variations, heterogeneous presentation, and a complex interaction of biochemical and biophysical elements. Some cancers respond to issues of early life nutrition, developmental phases or possible epigenetic issues[13], requiring further assessment.

Amongst commonly used supplements are turmeric, green tea, ginger[14], garlic[15], rosemary[16], black cumin, Indian ginseng/Ashwagandha[17]. We shall briefly review the first two. For cancer treatment superior quality supplements should be used[18].

Curcumin is the major constituent in turmeric, regularly used in food in India and S E Asia, where the overall cancer incidence is less than 1/3 of the USA[19]. Research[20] shows curcumin is useful in various cancers, slowing its progress, increasing apoptosis and survival ratings[21]. Its selectivity induces apoptosis at a phase of the cancer cell cycle leaving normal cells untouched[22]. It has been able to inhibit proliferation of various cancers through modifications of molecular and multiple cellular pathways[23].

Its intake is safe and can have applications to haematological, colon, oral, and hepatic cancers[24]. The NCR (USA) continues research showing curcumin’s preventative qualities and how it improves conditions post radiotherapy and chemotherapy[25] Curcumin’s low bioavailability and its solubility problem are remedied by adding black pepper[26].

Adding respect to these studies are cancer charities,[27] who have promoted research[28].

Green tea, with its active ingredient EGCG, has been found to reduce the risk of cancer[29]. Its preventative effects have been studied for over 40 years[30]. Ten of its polyphenol compounds are active against cancer activities and “significantly induced cell cycle arrest in the G1 phase and cell apoptosis”[31]. With oral cancer its use inhibits cell proliferation, induces apoptosis, and reduces migration[32]. Green tea elements have “significant anti-tumor effects in preclinical models of female hormone-dependent cancers”, having variations on subspecies responses[33]. Cancer related angiogenesis is reduced by EGCG[34].

Tumour microenvironment maintenance, often connected to cancer progression and relapse[35], may be better suited by certain supplements, which are non-toxic and have no side effects, thus offering better compliance[36].

While many cancers respond to increased immunocompetence[37], there are individual variations and different impacts on several cancers[38]. Amongst the 20% of cancer patients who use herb & spices as supplements, there is a slight possibility of pharmaceutic interaction[39]. Some hospital pharmacists counter-indicate some supplements as they carry the same biochemical role and may amplify or distort chemotherapies.  

There remains the question which cancers respond best to which supplement applications. Supporting this quest, various charities[40], with other studies[41], have positively pointed to curcumin, and other supplements, as useful treatments.


[1] Ancient and Traditional Foods, Plants, Herbs and Spices used in Cancer. (2023) eds R Rajendram et al. CRC Press LLC.

[2] Traditional Herbal Remedies in Modern Medicine: A Scientific Appraisal of Ethnopharmacological Practices. (2025) Benjamin Yusuf. J of Pharmay and Ther Res9(1). 

[3] Medicinal Plants and Traditional Uses and Modern Applications. (Mar 2025) M Manisha, et al. J of Neonatal Surgery 14(3)

[4] Healers and midwives accused of witchcraft (1563–1736) …. (Feb24) Nicola A. Ring et al. Nurse Ed Today 133.  They weren’t witches; they were women…. (6Sept24) Open Access Govt.  The Cure Within. (2008) Anne Harrington.

[5] There is often limited samples, missing data, flawed trials, marketing manipulation and selected references. Chapter 8: Assessing risk of bias in a randomized trial | CochraneEvaluating risk of bias in randomised controlled trials. (2022) A M Moseley et al. J of Physiology 68(2). Risk of bias: why measure it, and how? (30Sept21) M R Phillips et al. Eye (Lond). 36(2). Catalogue of Bias – Publication Bias. (2018) Oxford Univ.  Empirical Evidence of Study Design Biases in Randomized Trials….  (2016) M R Phillips et al.  PLoS ONE 11. The double-blind, randomized, placebo-controlled trial: Gold standard or golden calf? (2001) T J Kaptchuk. J. Clin. Epidemiol. 54. https://ora.ox.ac.uk/objects/uuid:20ff5949-f07b-4ab8-934a-cdaf4714a617/download_file?safe_filename=DeVito_and_Goldacre_2018_catalogue_of_bias_publication_bias.pdf&type_of_work=Journal+article. Bad Pharma (2012) Dr Ben Goldacre.

[6] The state of the art: clinicial implications for cancer patients. (2002) A J Cunningham in The Psychoimmunology of cancer. ed. C L Lewis.

[7] Radical Remissions. (2014) K Turner. Shows a wide variety of adaptive and curative techniques by initiated by different sufferers.

[8] The Role of Mitochondria in Cancer …. (4Nov14)) D D Zeviar et al. JOM  29.

[9] Including turmeric (curcumin), red chilli (capsaicin), cloves (eugenol), ginger (zerumbone), fennel (anethole), kokum (gambogic acid), fenugreek (diosgenin), black cumin (thymoquinone), cumin (Cuminum cyminum), coriander (Corriandrum sativum), cinnamon (Cinnamomum zeylanicum) and black pepper (Piper nigrum), have been noted for cancer prevention. Sloan- Kettering extensive list of benefits and counterindications :About Herbs, Botanicals & Other Products | Memorial Sloan Kettering Cancer Center . Ancient and Traditional Foods, Plants, Herbs and Spices used in Cancer (11Oct23) Eds. Rajkumar Rajendram et al.  Cancer cell signaling pathways targeted by spice-derived nutraceuticals. (2012) Bokyung Sung et al. Nutr Cancer 54(2). Herbs and Spices in Cancer Prevention and Treatment. (2011) C M. Kaefer et al. Herbal Medicine: Biomolecular and Clinical Aspects. Potential of spice-derived phytochemicals for cancer prevention. (Oct2008) B B Aggarwal et al. Planta Med. 74(13).

[10] Power Cance-Fighting Herbs and Spices. (Mar2023) Dr Jolie Connor

[11] Cancer cell signaling pathways targeted by spice-derived nutraceuticals. (2012) Bokyung Sung et al. Nutr Cancer 54(2). Herbs and Spices in Cancer Prevention and Treatment. (2011) C M. Kaefer et al. Herbal Medicine: Biomolecular and Clinical Aspects. Potential of spice-derived phytochemicals for cancer prevention. (Oct2008) B B Aggarwal et al. Planta Med. 74(13).

[12] Revisiting Curcumin in Cancer Therapy: Recent Insights into Molecular Mechanisms, Nanoformulations, and Synergistic Combinations. (2Sept25) Khadija Akter et al. Current Issues in Molecular Biology.47(9)

[13] Early Life Stress and the Onset of Obesity: Proof of MicroRNAs’ Involvement Through Modulation of Serotonin and Dopamine Systems’ Homeostasis. (28Jul20) Gabriel Araujo Tavares et al. Front Physiol11

https://www.sciencedirect.com/science/article/abs/pii/S1044579X19302135[14].

[15] Garlic constituents for cancer prevention and therapy…. (Jan22) A Mondal et al. Pharmacological Research 175.  Ginger and its active compounds in cancer therapy…. (Feb21) M.F. Mahomoodally et al. Seminars in Cancer Biology 69. Anti-Cancer Potential of Homemade Fresh Garlic Extract Is Related to Increased Endoplasmic Reticulum Stress. (5Apr18) Voin Petrovic et al.  Nutrients.10(4).

[16] Anti-proliferative effects of Rosmarinus officinalis L. … against human breast and liver carcinoma cells. (Mar25) R Darra et al. Food Bioscience 65.  Anticancer Activity of Rosmarinus officinalis L…. (10June20) A Allegra et al. Nutrients.12(6).

[17]Biodiversity, Biochemical Profiling, and Pharmaco-Commercial Applications of Withania somnifera… (26Jan23). Harshita Gaurav et al.  Molecules. 28(3).  Ancient medicine, modern use: Withania somnifera and its potential role in integrative oncology. (Dec2006) M Winters. Altern Med Rev 11(4)

[18] …Pesticide residues and their impact on human health. (Sept23) I de Andrade Arruda Fernandes et al. Food and Chemical Toxicology 179. Impacts of turmeric and its principal bioactive curcumin on human health…. (Jan23) M T El-Saadony et al. Front Nutr.9. Curcumin Supplementation and Human Disease …. (24Feb23) T M Panknin et al. Int J Mol Sci. 24(5). Therapeutic Effects of Green Tea Polyphenol (‒)-Epigallocatechin-3-Gallate (EGCG) in Relation to Molecular Pathways Controlling Inflammation, Oxidative Stress, and Apoptosis. (25Dec22) D Mokra et al. Int J Mol Sci. 24(1). Teas: https://puregreentea.blog/green-tea-highest-egcg/. Pesticides: Hidden Ingredients in Chinese Tea. (2012) Greenpeace Science Unit, Exeter.

[19] Global cancer statistics (Mar-Apr 2005) D M Parkin et al. CA Cancer J Clin.55(2). GLOBOCAN 2000: Cancer Incidence, Mortality, and Prevalence Worldwide …. (2001) F J Bray et al. Estimating the World Cancer Burden…. (2001) D M Parkin et al.  Int J of Cancer 94.

[20] Recent developments in curcumin and curcumin ….. (Nov2015) K Mahmood et al. Int J of Bio Macromolecules 81

Curcumin, a golden spice with a low bioavailability. (Jun2015) A Siviero et al. J of Herbal Med 5(2).

[21] Exploring the Contribution of Curcumin to Cancer Therapy…. (19Apr23). T Choudhuri et al. J of Bio Chem 280(20).  

[22] Curcumin Selectively Induces Apoptosis …. (20May05) Chiara de Waure et al.  Pharmaceutics 15(4).

[23] Curcumin as a novel therapeutic candidate for cancer…. (23Oct24) Shadiya Fawzul Ameer et al. Front Oncol 14

[24] Curcumin (Curcuma, Turmeric) and Cancer (PDQ®)–Health Professional Version. (13May2025)) Nat Can Inst.(USA).  Curcumin Biomarkers (7Feb2013) Sponsor: University of North Carolina, Chapel Hill   NCT01333917.  Maintenance Therapy for B-Chronic Lymphocytic Leukemia. (Jan 2011) S O’Brien and N E Kay.  Clinical Advances in Hematology & Oncology  9(1)

[25] Curcumin (Curcuma, Turmeric) and Cancer …. (13May2025) Nat Can Inst. (USA)

[26] Curcumin, a golden spice with a low bioavailability. (Jun2015) A Siviero et al. Jo of Herbal Med 5(2).

[27] Turmeric | Complementary and alternative therapy | Cancer Research UK

[28] …. Turmeric with the Pharmacological Benefits of Curcuminoids Components …. (2024) M H Shahrajabian et al. Curr Org Synth 21(5).  Curcumin Combination Chemotherapy: The Implication and Efficacy in Cancer, (Jul2019) Bee Ling Tan et al. Molecules 24(14) 

[29] Green Tea and Epigallocatechin Gallate (EGCG) for Cancer Prevention…. (2025) Yang Zhang et al. Meta-Analysis Am J Chin Med.53(6).    Inhibition of carcinogenesis by tea. (2002) C Yang C, et al. Annu Rev Pharmacol Toxicol.42. Green tea and cancer. (2010) I T Johnson. Lancet Oncology 11(^).

[30] Cancer Prevention with Green Tea and Its Principal Constituent, EGCG…. (Feb18) Hirota Fujiki et al.   Molecules and Cells 41(2).

[31] Epigallocatechin Gallate (EGCG) Is the Most Effective Cancer Chemopreventive Polyphenol in Green Tea. (8Nov12) Guang-Jian Du et al. Nutrients. 4(11) 

[32] Therapeutic potential of green tea’s epigallocatechin-3-gallate in oral cancer…. (2025) Saranya Ramsridhar et al. Discov Onc.16  

[33] A systematic review and meta-analysis of the effects of green tea extracts and polyphenols in female hormone-dependent cancers …. (22Seept25) Jin-jing He et al. Front. Oncol.15

[34] Angiogenesis inhibited by drinking tea. (1999) Cao et al. Nature 398.

[35] Tumor Microenvironment: A Complex Landscape of Cancer Development and Drug Resistance. 11Apr25) S Fatima. Cureus 17(4)

[36]Maintenance Therapy for B-Chronic Lymphocytic Leukemia. (Jan 2011) S O’Brien, MD, and N E Kay.  Clinical Advances in Hematology & Oncology  9(1)

[37] ibid. B B Aggarwal. Cancer Ireland . https://cancerireland.ie/cancer-survival-tips/herbs-and-herbal-remedies/

[38] Herbal Therapies for Cancer Treatment…. (2024) A Jenča et al. Biologics: Targets and Therapy 18. Survival correlation of immune response in human cancers. (2019) Y Liu et al. Oncotarget. 19.Herbs and Spices in Cancer Prevention and Treatment. (2011) C M. Kaefer et al. Herbal Medicine: Biomolecular and Clinical Aspects.

[39] Complementary medicine use during cancer treatment and potential herb-drug interactions…. (2019) J M, Dubois et al.. Sci Rep.9.

[40] Turmeric | Complementary and alternative therapy | Cancer Research UK. Green tea | Complementary and alternative therapy | Cancer Research UK. EGCG in Green Tea – Supplements A Powerful Ally in the Fight Against Cancer.

[41] …. Turmeric with the Pharmacological Benefits of Curcuminoids Components …. (2024) M H Shahrajabian et al. Curr Org Synth 21(5).  Curcumin Combination Chemotherapy: The Implication and Efficacy in Cancer. (Jul2019) Bee Ling Tan et al. Molecules 24(14) 

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