Researched & written by Keith Bishop, Integrative Cancer Educator, Cancer Coach, Clinical Nutritionist, Founder of Prevail Over Cancer and the Prevail Protocol, and Retired Pharmacist.Â
Dr. Thomas Seyfried, PhD, has extensively researched how cancer cells depend on glucose and L-glutamine for their growth and proliferation. Cancer cells exhibit altered metabolism, relying heavily on glucose (the Warburg effect) and L-glutamine (an amino acid) to fuel their rapid division and growth. By disrupting these metabolic pathways, we can effectively starve cancer cells and inhibit their growth.
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Protein L-Glutamine and Cancer
Step 1 - Limit L-Glutamine added to protein powders.Â
There are 3 major food groups our body must have: protein, carbohydrates, and fats. Proteins provide amino acids including L-glutamine that are used for many functions in our body including brain chemicals, energy production, and organ repair. L-glutamine plays an important role in energy, cancer cell growth and progression. Limiting L-glutamine sources can often help slow cancer cell growth.
L-glutamine is one of the amino acids that our body can make from other amino acids. Since this is the case the first step in decreasing L-glutamine use by cancer cells is limiting protein powders that have L-glutamine listed as an ingredient. So, if you’re using protein powders check your labels and change sources if needed.

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Step 2Â Intermittent Fasting
🍽️Intermittent Fasting
L-Glutamine
L-glutamine is an amino acid derived from proteins in our diet. We ...