Free Radicals, Aging & Disease: The Astaxanthin Breakthrough

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Samuel Shepherd - ValAsta

Astaxanthin Supplement

www.ValAsta.com

In this episode of Over 40 Fitness Hacks, I sit down with Samuel Shepherd—a biochemical engineer with a wild backstory spanning petrochemicals, defense research, and cutting-edge science—to discuss his personal journey from a terminal diagnosis to discovering the potential of astaxanthin.

Samuel shares how he was diagnosed with polycythemia vera, a rare and life-threatening blood cancer, and given slim odds of survival. After years of traditional management with no real solution, he took matters into his own hands—leveraging his background in chemistry and access to advanced research tools to search for answers.

His breakthrough came from a simple but powerful question: “What living things don’t get cancer?”

After researching species like salmon, flamingos, sharks, elephants, and naked mole rats, he identified a common compound among them—astaxanthin, a potent antioxidant derived from algae.

He began experimenting on himself, initially consuming algae-derived astaxanthin in small doses. Over time, he observed measurable improvements in his condition—eventually eliminating the need for ongoing blood treatments.

We break down the science in a way that makes sense for everyday listeners:

• Aging & disease are heavily linked to free radical damage

• These free radicals contribute to inflammation, DNA damage, and chronic disease

• As we age (around 40–50), our natural antioxidant production declines

  
  

Samuel explains that astaxanthin works differently than typical antioxidants:

• It targets multiple free radicals at once

• It operates at the mitochondrial level (your body’s energy center)

• It may help reduce the root causes of inflammation rather than just symptoms

  
  

He also introduces his concept of attacking disease at the “trunk of the tree” (root cause), rather than treating individual symptoms at the “branches.”

A key part of Samuel’s work is improving how astaxanthin is absorbed:

• Standard supplements often isolate the compound

• He discovered that keeping it bound to a glucose molecule improves absorption

• This “Trojan horse” concept may help deliver it more effectively into cells

From my perspective as a coach for people over 40, we connect this to real-world application:

• This isn’t a replacement for fundamentals like:

• • Nutrition

  • Strength training

  • Sleep

  • Stress management

• But it may be a powerful addition to a longevity-focused supplement stack

We also compare it to other tools like:

• Glutathione

• Fasting

• Anti-inflammatory nutrition

If you're interested in online personal training or being a guest on my podcast, "Over 40 Fitness Hacks," you can reach me at brad@over40fitnesshacks.com or visit my website at:

www.Over40FitnessHacks.com

Additionally, check out my Yelp reviews for my local business, Evolve Gym in Huntington Beach, at https://bit.ly/3GCKRzV

My Current Over-40 Fat Loss Routine (What’s Changed & Why It Works)

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In this solo episode, Brad Williams of Over 40 Fitness Hacks shares an updated snapshot of his current routine, covering workouts, supplements, nutrition, and lifestyle strategies he’s using to push toward his leanest physique yet while protecting his joints and long-term health.

Brad explains why he’s slowing down podcast publishing—now focusing on one solo episode and one guest per month—and why he’s prioritizing deeper engagement inside his free SKOOL community. After hundreds of interviews, he’s shifting from repeating the same conversations to showing real-time experimentation and progress.

At 184 pounds and aiming for 180, Brad walks through what it actually takes to approach single-digit body fat over 40, emphasizing that it’s challenging, not necessarily “healthy,” and requires extreme consistency. His goal is transparency—showing his community both the results and the struggle.

Morning Routine & Mobility Each day starts with hot showers, cat-cow stretching, nerve flossing, and light mobility work—non-negotiables after multiple L5-S1 microdiscectomies. These short daily practices help keep his spine healthy and pain-free.

Supplements & Tracking Rather than guessing, Brad uses the Cronometer app to track micronutrients and identify deficiencies. His supplement stack adjusts based on real data and includes essentials like magnesium, zinc, omega-3s, vitamin D3 + K2, calcium, vitamin C, CoQ10, turmeric, and targeted minerals—taken strategically throughout the day to avoid absorption conflicts. He emphasizes nutrient balance (omega-3 to omega-6, zinc to copper, sodium to potassium, calcium to oxalates) over megadosing.

Training Split

• Monday / Wednesday / Friday: 30-minute full-body gym workouts using a time-under-tension approach. Brad rotates chest, back, and legs with lighter weights, slower tempos, and longer sets to reduce joint stress while still building muscle.
  

• Tuesday / Thursday: Short (10–15 min) blood flow restriction (BFR) workouts at home, focusing on arms and legs with very light weights—or physical therapy if recovery feels off.
  

• Core Work: Planks, side planks, and controlled leg raises, with a warning about ab rollers after suffering an inguinal hernia.
  

• Cardio & Daily Movement: Daily 30-minute walks (often with a weighted vest), plus weekly high-intensity rebounder sprint sessions for mitochondrial health and calorie burn—his safer alternative to outdoor sprinting post-back surgery.
  

Calorie Tracking & Fat Loss Brad relies on his WHOOP data—not generic calculators—to manage calorie intake day by day. He adjusts food intake based on actual burn, especially when pushing fat loss. For him, precision matters more as body fat drops.

Nutrition Philosophy The biggest shift over 40: insulin awareness. Brad explains how frequent eating kills fat-burning and why he now favors two meals per day, eaten within short windows, prioritizing protein and fats first, carbs last. This approach improves insulin response, appetite control, and fat loss. On weekends, he still tracks calories while allowing flexibility with food and alcohol—using fiber strategically to slow absorption.

If you're interested in online personal training or being a guest on my podcast, "Over 40 Fitness Hacks," you can reach me at brad@over40fitnesshacks.com or visit my website at:

www.Over40FitnessHacks.com

Additionally, check out my Yelp reviews for my local business, Evolve Gym in Huntington Beach, at https://bit.ly/3GCKRzV