THE PURSER BOOKSHELF
More to discover.
One idea at a time.
Explore the ideas inside Dr. Purser’s books, chapters and educational reports. Thoughtful reading guides connect each subject to the wider encyclopedia.
48 reading guides
Search with spelling helpHomocysteine: how the story developed
Understand why homocysteine became a health topic and why lowering a blood number is not the same as preventing disease.
Explore this reading Chapter guideUnderstanding homocysteine and its pathways
See the two main routes for processing homocysteine and what may affect a blood result.
Explore this reading Chapter guideGenes in the homocysteine conversation
Learn how to read a specific genetic variant before drawing conclusions about homocysteine.
Explore this reading Chapter guideNutrition and unexpectedly low homocysteine
Explore why a low homocysteine number does not tell the whole nutrition story.
Explore this reading Chapter guideHomocysteine, monocytes, IL-8 and MCP-1
Meet the immune signals IL-8 and MCP-1 and the research question linking them to homocysteine.
Explore this reading Chapter guideGenetics and the transsulfuration pathway
Follow the sulfur pathway from homocysteine toward cysteine and glutathione.
Explore this reading Chapter guideHomocysteine, inflammation and pain
Explore the possible links between homocysteine, immune signaling, and pain.
Explore this reading Chapter guideHomocysteine, D-dimer and inflammatory markers
See what homocysteine, D-dimer, and CRP each measure.
Explore this reading Chapter guideTwo studies behind the homocysteine–glutathione model
Compare studies of homocysteine and glutathione with evidence of benefit in people.
Explore this reading Chapter guideHomocysteine and environmental exposures
Separate questions about toxin exposure from questions about genetics and antioxidant pathways.
Explore this reading Chapter guideHomocysteine and cardiovascular risk
Learn the difference between a cardiovascular risk marker and a treatment that prevents events.
Explore this reading Chapter guideIL-8, MCP-1 and kidney inflammation
See how IL-8 and MCP-1 feature in research on kidney inflammation and scarring.
Explore this reading Chapter guideMethionine restriction: the questions behind the debate
Think through the nutrition questions before cutting methionine or protein.
Explore this reading Chapter guideGlutathione and kidney disease: a proposed research direction
Explore why glutathione is studied in kidney disease without assuming a product improves kidney function.
Explore this reading Chapter guideReduced glutathione: formulations and patent claims
Learn how formulation, storage, and delivery differ from proof of a health benefit.
Explore this reading Chapter guideVARS Glutathione: delivery and formulation
Explore how VARS Glutathione is made and what questions to ask about delivery and outcomes.
Explore this reading Chapter guideGlutaryl and transdermal glutathione
Compare topical and transdermal glutathione claims and the evidence behind them.
Explore this reading Chapter guideSkyrizi and homocysteine: the research question
Explore a research question about IL-23 medicines and homocysteine-related inflammation.
Explore this reading Chapter guidePersistent IL-8 and the question of hidden infection
Learn why an IL-8 result alone cannot locate an infection.
Explore this reading Book guide · 2009Program 120: a guide to the preventive-medicine textbook
Explore the subjects in an earlier preventive medicine handbook and follow them into current learning.
Explore this reading Book guideProgram 120 for women: prevention and everyday health
Explore prevention topics in the women’s Program 120 handbook, one health question at a time.
Explore this reading Book guideProgram 120 for women: hormones and lifestyle
Explore questions about hormones, sexual health, food, and daily habits in the women’s handbook.
Explore this reading Book guideProgram 120 for men: prevention and everyday health
Explore prevention topics in the men’s Program 120 handbook, one health question at a time.
Explore this reading Book guideProgram 120 for men: hormones and lifestyle
Explore questions about hormones, sexual health, food, and daily habits in the men’s handbook.
Explore this reading Book guideMale sexuality, fertility and testosterone
Learn why libido, erectile function, testosterone, and fertility are different health questions.
Explore this reading Book guideThyroid: cold hands, cold feet and the bigger picture
Learn how symptoms, lab results, and health history fit into a thyroid discussion.
Explore this reading Book guideBone health: understanding the osteoporosis book
Explore bone density, fracture risk, nutrition, activity, and treatment questions.
Explore this reading Book guide · 2015Autism: a guide to the 2015 research discussion
Explore mitochondrial energy and nutrition as research topics without assuming one explanation fits every autistic person.
Explore this reading Book guide · 2014Progesterone: reading the hormone handbook
Learn what progesterone is, how preparations differ, and which symptoms need a closer look.
Explore this reading Book guide · 2015Menopause, essential oils and nutritional questions
Explore menopause symptoms and questions about oils, herbs, nutrients, and hormones.
Explore this reading Book guideFibromyalgia, fatigue and the pituitary perspective
Learn about fibromyalgia and why several possible explanations need individual assessment.
Explore this reading Book guide · 2014Breast cancer: understanding the historical guide
Find reliable questions to bring to your cancer team when reading older supportive care ideas.
Explore this reading Book guide · 2015Erectile dysfunction: questions beyond a prescription
Explore physical, emotional, and medicine-related causes of erection difficulties.
Explore this reading Report guide · 2015Progesterone benefits and cautions: report guide
Explore claims about progesterone by asking which specific benefit was measured.
Explore this reading Report guide · 2015Post-menopausal estrogens: report guide
Explore the possible benefits and risks of estrogen treatment after menopause.
Explore this reading Report guide · 2015Testosterone in women: report guide
Explore testosterone symptoms and test results in women without assuming a single cause.
Explore this reading Report guide · 2015Possible contributors to low testosterone
Learn what a low testosterone result can and cannot tell you about its cause.
Explore this reading Report guide · 2015Low testosterone in men: the report’s themes
See why symptoms and repeat testing both matter when discussing testosterone in men.
Explore this reading Report guide · 2015Testosterone cypionate: questions about long-term use
Review fertility, red blood cells, and other questions to raise about testosterone injections.
Explore this reading Report guide · 2015Questions to ask about testosterone
Prepare a clear set of questions about testosterone results, goals, options, and follow-up.
Explore this reading Report guideLab solutions: understanding the test names
Learn what common blood, urine, and hormone tests are used to investigate.
Explore this reading Report guide · 2022Artery health: a guide to the therapies report
Compare artery imaging, blood markers, and actual heart health outcomes.
Explore this reading Report guideDr. Purser’s “medical truths”: a perspective guide
Turn broad health statements into specific questions you can discuss with a clinician.
Explore this reading Report guideEstradiol and HRT: questions for a consultation
Explore how your health history affects a conversation about estradiol or hormone therapy.
Explore this reading Report guideHomocysteine: a map of the practice flow chart
Follow the questions linking symptoms, genetics, homocysteine, and immune signals.
Explore this reading Report guide · 2022Ulcerative colitis and Crohn’s: the study guide
Learn how nutrition questions and bowel inflammation can affect each other without treating them as the same problem.
Explore this reading Report guideFibromyalgia: a guide to the 23-step report
Explore a proposed copper model of fibromyalgia and what evidence would be needed to assess it.
Explore this reading Report guide · 2021Emergency preparedness: a guide to the home-kit report
Think through water, food, warmth, communication, and personal health needs for an emergency plan.
Explore this readingFind the ideas from Dr. Purser’s books, chapters, and reports in easy-to-read guides. The original books and reports are not available to download here. Some older ideas are still being studied, so bring questions about your own care to a qualified clinician.
