What would you do if you were told you had anywhere from 10 minutes to 10 years to live?

In this episode, Dr. Barrett sit down with Samuel Shepherd, biochemical engineer, who shares his personal journey after being diagnosed with polycythemia vera, a rare blood disorder, and how that diagnosis led him to investigate the role of oxidative stress, free radicals, and cellular damage in chronic disease. (Astaxanthin and Cancer Recovery)

His research led him to study astaxanthin, a powerful carotenoid found in nature, and how it may influence inflammation, mitochondrial health, and oxidative balance at the cellular level.

This is not a typical supplement conversation. It’s a deep dive into biochemistry, reactive oxygen species (ROS), protein misfolding, and immune signaling—and how these processes may be involved in conditions like cancer, diabetes, and neurodegenerative disease.

In This Episode, We Discuss:

  • How oxidative stress and free radicals damage DNA and proteins
  • The role of mitochondria and inflammation in chronic disease
  • Why antioxidant defenses decline with age
  • How protein misfolding may contribute to insulin resistance
  • Why astaxanthin has become a major focus of his research

⚠️ Important: This episode is for educational discussion only and does not replace medical care. Cancer and chronic disease require professional diagnosis and treatment. Always consult qualified healthcare providers before making medical decisions.

If you’re interested in biochemistry, longevity research, inflammation, and cellular health, this conversation will give you a new way to think about why disease develops—and what future research may reveal.

Astaxanthin and Cancer Recovery Samuel Shepherd

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Author Biography

Samuel Shepherd

Samuel Shepherd

Samuel Shepherd is a prominent physicist, inventor, and engineer, who has garnered international recognition for his expertise and contributions in several fields in science to include, Bio-Chemical / Medical engineering, physics, chemistry, and mathematics. He is an inventor with 42 patents to date, businessman, forensic investigator, cosmologist, speaker, painter, entrepreneur, and Dinosaur Hunter.

He has developed leading edge technologies in the Environmental Fields of Wastewater, Water, Alternative Energy, Carbon Capture Systems, Petro / Chemical, Polymer and Bio-chemical / Bio-Mechanical Industries.  He holds degrees in these fields, including a B.S in Chemical Engineering and a Master’s Degree in Environmental Engineering, which serve as a testament to his extensive knowledge and deep understanding of the subject matter.  In addition to the vast knowledge in the sciences he has also obtained a PHD in Biblical Studies.

Mr. Shepherd’s dedication to his work and commitment to excellence have not gone unnoticed. He has been awarded Lifetime Fellow Status at the American College of Forensic Examiners and has been certified as a Class III Homeland Security professional.

Show Notes from this episode

00:00 – Introduction

  • Welcome and episode overview
  • Introduction of guest Sam Shepard, biochemical engineer
  • Discussion of his unique “n of one” experiment developing astaxanthin therapy
  • Announcement of sponsor code: valasta.net with code POI5 for 5% discount
  • Episode topics preview: reactive oxygen species (ROS), inflammation, disease processes

01:48 – Sam’s Medical Crisis Begins

  • Sam’s health problems started in 2003 with high blood pressure and AFib
  • Initial suspicion of coronary artery disease, but arteries were clear
  • Emergency call from nurse requesting Monday morning appointment
  • Blood pressure spikes as high as 280/160

02:43 – Diagnosis: Polycythemia Vera

  • Diagnosed with rare blood cancer: polycythemia vera
  • JAK2/STAT3 mutation causing overactive stem cells
  • Normal production: 3-5 million red blood cells/day
  • Sam’s production: 35-60 million red blood cells/day
  • Hemoglobin spiked to 27; hematocrit in low 80s
  • Blood described as “ketchup-like” viscosity

04:46 – Treatment and Prognosis

  • Immediately transferred to hospital for phlebotomy
  • Required monthly phlebotomies for four years
  • Prognosis: 3% chance of surviving past 10 years
  • Doctor’s statement: “10 minutes to 10 years” – could throw clot at any time
  • 97% mortality rate within 10 years
  • No chemo or radiation protocol available

06:30 – The Question That Changed Everything

  • After four years, Sam realized he needed a solution
  • Early morning epiphany at 4 AM: “What animals don’t get cancer?”
  • Used Department of Defense ProQuest database for research
  • Searched for animals with no recorded cancer cases

08:21 – Discovery of Common Thread

  • Database returned five animals: salmon, pink flamingos, sharks, elephants, naked mole rats
  • (Shrimp and lobsters later identified as well)
  • Contacted Scripps for mass spectrometry analysis
  • Requested screening algorithm to identify unexpected molecules
  • Four months later: ONE molecule found across all five species – astaxanthin

09:25 – Understanding Astaxanthin

  • Astaxanthin is a carotenoid produced by algae Hematococcus pluvialis
  • Obtained algae species from University of Texas
  • Grew algae in “hillbilly hot tub” (Intex inflatable pool with heater and blower)
  • Created greenhouse-like cover for cultivation

10:21 – Algae Cultivation Technique

  • Based on research from Salton Sea area
  • Algae produces carotenoids under stress (dying conditions)
  • Key discovery: increased salinity triggers carotenoid production
  • Added salt to reactor → within 48 hours algae turned from green to bright purple/red
  • Used dissolved air flotation to harvest
  • Manually skimmed and dehydrated the red algae
  • Final product: 3.8% astaxanthin content

12:04 – First Dosing Experiments

  • Started conservatively at 4-5 mg/day (based on Scripps non-hazardous dose limit)
  • Scripps was researching it as salmon dye for farm-raised fish
  • Sprinkled dried algae on eggs, salads, or in cookies
  • After 4-5 months at 4 mg/day:
    • A1C dropped from 6.2 (pre-diabetic) to 5.4
    • Blood work normalized
    • Phlebotomies extended from monthly to every 2 months

13:19 – Dose Escalation to 12 mg/day

  • Tripled dose to 12 mg/day
  • After two months: phlebotomies extended to every 4 months
  • Reduction from 12 times/year to 3 times/year – statistically significant

15:00 – Mathematical Projection

  • Had three data points with different slopes:
    • Control: monthly phlebotomies
    • 4 mg: every 2 months
    • 12 mg: every 4 months
  • Calculated dose needed to eliminate phlebotomies for 50 years: 96 mg/day
  • Began taking 100 mg/day

16:56 – Effects at 100 mg/day

  • Only side effect: red stool (from astaxanthin dye, similar to beets)
  • Increased energy levels
  • Blood sugar levels dropped significantly
  • Blood work normalized completely
  • Phlebotomies ended within 2 months

17:04 – The Why Behind the Effect

  • Spent 8 years and significant money understanding the biochemical mechanism
  • Background in polymer manufacturing and free radical chemistry
  • Focused research on reactive oxygen species (ROS)

20:50 – Identifying the Culprit: Hydroxyl Free Radical

  • Four main ROS identified: superoxide, singlet oxygen, peroxyl non-radical, hydroxyl free radical
  • Hydroxyl free radical steals electrons from DNA at guanine sites
  • Guanine has lowest oxidation potential in DNA
  • This is where mutations occur

21:35 – The Mutation Mechanism

  • Hydroxyl radical changes guanine into cytosine
  • PARP and BRCA1 repair the break but convert it to cytosine
  • Results in permanent mutation (G→C)
  • If RNA messenger picks this up, it translates into mutated proteins
  • This process causes genetic mutations leading to cancer

22:51 – Discovery of Inflammation Marker

  • Tracked high-sensitivity C-reactive protein (HS-CRP)
  • Liver produces CRP in response to systemic inflammation
  • Sam’s HS-CRP dropped from 12 to under 2
  • Arthritis in fingers and ankles resolved in about 7 days at 100 mg dose
  • At age 73: no arthritis, no joint problems

24:07 – Glutathione Study

  • Conducted study on blood from age 5 to 105 years old
  • Measured RBC glutathione levels and HS-CRP
  • Young people: high glutathione, very low HS-CRP
  • Women age 40-42: HS-CRP uptick, 60% decrease in glutathione
  • Major breakdown around age 50

25:00 – Age-Related Antioxidant Decline

  • Intracellular antioxidants decline with age: glutathione, catalase, superoxide dismutase (SOD)
  • This explains age-onset diseases after 50
  • Oral glutathione doesn’t survive stomach acid
  • IV glutathione doesn’t enter cells
  • Glutathione is made intracellularly from lysine, leucine, tryptophan
  • 11-step pathway becomes inefficient with age

27:07 – The Solution: Electron Donation

  • Key insight: donate an electron to free radical → neutralizes to water
  • ROS are made in mitochondria from sugars/carbohydrates
  • Fenton reaction (peroxide + iron/copper) produces massive amounts of free radicals

28:01 – Commercial Production Begins

  • 2013: Moved to Charleston to secure facility
  • Began producing 3,000 mg/day
  • Kept operation very quiet due to FDA uncertainty
  • Approved in Europe but overlooked in US

29:01 – First Cancer Patient: Lori

  • Late 2013: Lady at Mississippi party wearing bandana
  • Stage 4 inflammatory breast cancer
  • 2 brain tumors, 7 colon tumors, lesion under left armpit
  • Sent home with hospice: 2-4 months to live, already in month 2
  • Despite warnings not to tell anyone, party host had revealed Sam’s work
  • Lori volunteered to take astaxanthin

29:52 – High-Risk Decision

  • Sam had no dose guidance beyond his own experience
  • Lori grabbed his cheeks: “I have two months left”
  • Decided to give her 3,000 mg/day (30x his therapeutic dose)
  • Committed to 60 days (her remaining two months)

31:06 – Dramatic Recovery

  • Day 42: Lori called feeling much better, gaining weight
  • Hospice notified MD Anderson she wasn’t progressing toward death
  • Hospice left
  • Called to MD Anderson for examination

32:03 – MD Anderson Findings

  • Doctor couldn’t find colon tumors by palpation
  • Scan showed no traces of cancer in her body
  • Doctor questioned if misdiagnosis had occurred
  • Extensive questioning about diet changes
  • Lori revealed nothing to doctors

33:41 – Blood Work Discovery

  • MD Anderson took extensive blood samples
  • Three days later: pathologist called asking what changed in her diet
  • Found marker (astaxanthin) not in previous samples
  • Lori couldn’t resist revealing she changed something
  • Gave Sam’s contact information to pathologist

35:00 – Confrontation with Pathologist

  • Pathologist called Sam, accused of practicing medicine without license
  • Sam demanded pathologist’s name, address, and bank account
  • Explained it was pure research, First Amendment rights
  • Pathologist hung up, never contacted again

36:01 – Expanding Treatment

  • 2013-2014: Began producing and giving to family and friends
  • Cancers disappeared in 30-60 days depending on type and severity
  • Most shocking: glioblastoma cases

37:00 – Glioblastoma Success

  • Four initial glioblastoma cases
  • Within 30 days: cancer progression stopped
  • Secondary issue: fluid retention in cranium from inflammatory cleanup response
  • Two cases required shunts to drain fluid
  • No live cancer cells found in fluid, PET scans negative
  • Current record: 18/18 glioblastomas cured
  • Pancreatic cancer proving most difficult (extracellular matrix resistance)

37:48 – Washington DC Presentation

  • Spoke to senators, representatives, Ben Carson’s team
  • Five major hospitals represented: Johns Hopkins, Sloan Kettering, MD Anderson, Mayo, Cleveland Clinic
  • Two-hour oral thesis presentation
  • Johns Hopkins Director of Oncology apologized for initial skepticism
  • Acknowledged Sam “figured it out”

38:57 – NIH Funding

  • Director is gatekeeper for Congress→NIH funding
  • Sam offered to work free of charge
  • Director told him to “just go away” (to avoid bias)
  • NIH allocated ~$80 million to prove Sam wrong
  • Instead, proved him right
  • Can now Google “NIH + astaxanthin + [disease]” for research

39:35 – Diseases Researched

  • NIH research now covers: cancer, arthritis, Alzheimer’s, Parkinson’s, MS, irritable bowel, Hashimoto’s
  • All showing ROS component as disease cause

40:00 – Mechanism of Action: Protein Misfolding

  • Hydroxyl free radical steals electrons from anything it contacts
  • Affects carbohydrates, proteins, enzymes, RNA, DNA
  • Changes electronic configuration → protein misfolding

40:55 – Insulin Resistance Example

  • Insulin produced as straight line, then folded by ribosomes
  • Van der Waals and electrostatic forces create precise folding
  • Functional group must stick out perfectly to fit insulin receptor
  • Hydroxyl radical steals electron → electrostatic misfolding
  • Misfolded insulin can’t fit receptor properly
  • This is insulin resistance

42:39 – Type 2 Diabetes Reversal

  • Works on type 2 diabetes (not type 1)
  • When HS-CRP drops under 3 mg/L: no medication needed
  • Blood sugar “dropped like a rock”
  • Problem: patients on medication experienced hypoglycemia
  • Solution: stop insulin/Metformin as blood sugar normalizes
  • Mindset shift required: don’t give insulin to normal blood work

45:00 – Alzheimer’s Disease Mechanism

  • MIT research on amyloid protein buildup
  • Debate exists: amyloid may be protective in full form
  • Problem: amyloid snipped at wrong point by hydroxyl free radicals
  • Snipped portions can’t be cleared by microglia
  • Microglia are brain’s waste management (not human cells, no DNA)
  • Microglia love amyloid protein but lose energy with age

46:39 – MIT Light Therapy Study

  • MIT drilled holes in genetically modified rats’ heads
  • Fiber optic delivered light at specific frequency to occipital lobe
  • Rats relearned mazes, gamma frequency returned
  • Sam’s background: electromagnetic pulse weapons development
  • Knew how to alter brain frequencies (alpha, beta, theta, gamma)

47:45 – Non-Invasive Light Therapy

  • Sam proposed sending signal through the eye instead
  • Eyes convert photons to electrons at same frequency
  • Room lights: 60 Hz = 120 flashes/second
  • Brain operates at 120 flashes/second with lights on
  • Sleep requires <30 flashes/second (15 Hz)
  • 20 Hz light (40 flashes/second) mimics fiber optic approach
  • Successfully stopped Alzheimer’s progression

48:53 – Two-Pronged Alzheimer’s Approach

  1. Prevent amyloid protein misfolding (astaxanthin)
  2. Clear existing plaque (light therapy)
  • Misfolded amyloid plaques on myelin sheath
  • Destroys insulating layer around nerve axons
  • Cell short circuits, bleeds electricity
  • Eventually dies (irreversible Alzheimer’s damage)

49:53 – The Balance of ROS

  • Some ROS required for cellular communication
  • Problem is chronic high levels of ROS
  • Cells damaged by high oxidation rates from free radicals

Key Takeaways

  1. Astaxanthin Source: Carotenoid from Hematococcus pluvialis algae
  2. Sam’s Therapeutic Dose: 100 mg/day (eliminated polycythemia vera phlebotomies)
  3. Cancer Treatment Doses: Up to 3,000 mg/day
  4. Mechanism: Neutralizes hydroxyl free radicals by donating electrons
  5. Primary Benefit: Reduces systemic inflammation (HS-CRP)
  6. Success Rate: 18/18 glioblastomas cured
  7. Additional Benefits: Reverses type 2 diabetes, eliminates arthritis, improves Alzheimer’s
  8. Website: valasta.net | Discount Code: POI5 (5% off)

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