A science-backed breakdown of allulose, xylitol, and other metabolic sweeteners — and how they shape glucose, insulin, oxidative stress, and the metabolic terrain that affects cancer growth.

"Allulose and Cancer” Is Becoming a Key Question

Researched and written by Keith Bishop, Integrative Cancer Educator, Clinical Nutritionist, Cancer Coach, Founder of Prevail Protocol™ and Prevail Over Cancer™, and Retired Pharmacist

Cancer cells rely heavily on glucose uptake and glycolysis, even when oxygen is available — the hallmark Warburg effect.[i] Because of this metabolic preference, sweeteners that raise glucose and insulin can create a terrain more favorable to cancer progression, while sweeteners that stabilize metabolic pathways may support better outcomes.

Among all sweeteners, allulose is emerging as one of the most metabolically unique, with early research suggesting potential relevance to cancer metabolism.

This article provides a deep, evidence-based look at allulose and ca...

How Tea Polyphenols Support Cellular Health, Reduce Oxidative Stress, Counteract Damage from Processed Foods, and Reduce Cancer Risks

Tea is one of the most widely consumed beverages in the world—and one of the most researched. Green tea, matcha, and black tea all come from the Camellia sinensis plant, yet each offers unique anticancer benefits thanks to differences in processing, polyphenol content, and antioxidant potency.

For people with cancer and caregivers looking for simple, daily habits that support an anticancer lifestyle, tea is a powerful, evidence-supported place to start.

Smart Beverage Pairing Seminar Handout

Why Tea Matters for Cancer Prevention

Tea is rich in polyphenols, plant compounds that help protect cells from oxidative stress, inflammation, and DNA damage—three biological processes closely linked to cancer development.

The most studied polyphenols include:

• Catechins (especially EGCG) in green tea
• Theaflavins and thearubigins in black tea
• Concentrated c...

Discover how this powerful plant compound may help change cancer pathways, reduce histamine overload, and support your body’s immune resilience—backed by peer-reviewed science.

Researched and written by Keith Bishop, Clinical Nutritionist, Cancer Coach, Retired Pharmacist, and Founder of Prevail Over Cancer.

Quercetin is a plant-derived flavonol found in many fruits, vegetables, and herbs. Known for its potent antioxidant, anti-inflammatory, antihistamine, and anticancer properties, it’s emerging as a key player in integrative oncology and immune modulation.

If you’re navigating cancer—whether newly diagnosed, in treatment, or in recovery—you’ve likely heard about antioxidants and immune support. But one compound stands out: quercetin, a flavonoid found in everyday foods like onions, apples, and broccoli. Emerging research suggests quercetin may help regulate inflammation, stabilize histamine levels, and even influence cancer-related pathways like apoptosis and angiogenesis. In this...

Nuts and Cancer - Nuts may be considered a cancer superfood because they contain additive and/or synergistic properties that contribute to reduced cancer risk.

Researched and written by Keith Bishop, Clinical Nutritionist, Cancer Coach, Retired Pharmacist, and Founder of Prevail Over Cancer

Nuts are a rich source of monounsaturated and polyunsaturated fatty acids, tocopherols, antioxidant polyphenols, fiber, prebiotics, vegetable protein, minerals, and vitamins. Fiber and prebiotics can promote the growth of beneficial bacteria in the gut microbiome.[i] 

Nuts can decrease glucose, insulin, and inflammation levels.[ii] [iii] All of which can increase the risk or even stimulate cancer if elevated.

A human genetic study of women with breast cancer found that consuming 2 oz (60 grams) of walnuts a day for 2 weeks improved 456 cancer-prevention and cancer-growth genetic pathways. Analysis of the data showed activation of pathways that promote apoptosis (normal cancer cell death), help k...