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Founder's Blog

Thiamine for Runners: The Rice Bran Clue Behind Vitamin B1

Posted by George Parker on

A chicken-feed mystery helped reveal vitamin B1 and the essential role it plays in energy metabolism. Here’s how runners can get thiamine from food—and how a daily multivitamin can provide consistent nutritional insurance when real life makes perfect eating impossible.

Chromium for Runners: From a Red Stone to a Modern Multivitamin

Posted by George Parker on

A search for gold uncovered a red mineral that led chemists through yellow, green, and finally to elemental chromium. Here is why the current PEREGRUNE formula includes a near-daily-value amount—and what the clinical evidence actually shows runners.

Antioxidants for Runners: When Supplements Can Help

Posted by George Parker on
Hard training creates oxidative signals that help drive adaptation, so more antioxidant supplementation is not always better. Here’s how runners can distinguish ordinary food sources from the high-dose vitamin C and E protocols studied in endurance research.

Phosphorus for Runners: What ATP Does—and Supplements Don’t

Posted by George Parker on
Phosphorus helps build ATP, cell membranes, and bone—but most runners already get plenty from food. Here’s what phosphate-loading studies actually found and why a changed lab value is not the same as a faster race.

The Art of Keeping Score

Posted by George Parker on
A pencil, a baseball scorebook, and a marathon on television. Why knowing the details changes the way we watch sports.

Manganese for Runners: Essential, Everywhere, and Easy to Overthink

Posted by George Parker on
Manganese supports normal metabolism and antioxidant enzymes, but runners rarely need a standalone supplement. Here’s how to meet your needs with food—and why athlete biomarker studies do not prove a performance benefit.

Vitamin K for Runners: Bone Health, Leafy Greens, and the K2 Question

Posted by George Parker on
Vitamin K helps activate proteins involved in normal blood clotting and bone metabolism, but improved biomarkers do not automatically mean stronger bones or faster running. Here’s what runners should know about K1, K2, food sources, supplements, and the important warfarin interaction.

Copper for Runners: The Mineral That Helps Iron Do Its Job

Posted by George Parker on
Copper helps enzymes involved in iron metabolism, energy production, and connective-tissue formation—but extra copper has not been shown to make well-nourished runners faster. Here’s how much runners need, the best food sources, and why high-dose zinc deserves attention.

Iodine for Runners: The Mineral Hiding in Your Salt

Posted by George Parker on
Iodine supports normal thyroid hormone production, but runners can overlook it when they skip dairy and seafood or switch from iodized salt to specialty salts. Here’s how to check your intake without chasing high doses.

Why 40% of Marathon Runners Get Injured During Training

Posted by George Parker on
Roughly 40% of runners training for the New York City Marathon reported an injury. Here’s what runners can do to stay healthy and consistent.

Selenium for Runners: Essential, but More Isn’t Better

Posted by George Parker on

Selenium helps your body run important antioxidant and thyroid systems. But for most runners, the useful target is adequacy, not a heroic dose.

An Ice Age Doesn't Start With a Cold Winter

Posted by George Parker on

It starts with something much smaller

There Was a String Across His Bedroom

Posted by George Parker on

It didn’t work. That’s when the engineer in me got interested.

He Got New Coke Wrong. Then He Said This.

Posted by George Parker on

Do you remember New Coke? I saw this week that Brian Dyson, the former Coca-Cola executive who championed New Coke, passed away at 90. In 1985, Coca-Cola replaced its famous formula with a sweeter version...

Where Do the Miles Go?

Posted by George Parker on

How do you wear out something that’s still there? I can understand a bald tire or a hole in a sock. But the foam in my running shoes hasn’t gone anywhere. I watched the Apollo...