When national conversations turn to artificial food dyes, most people think about labels and regulations. For Erin Krier, the issue is personal—and rooted in years of lived experience as both a parent and an agriculture professor.
Krier, the Agriculture Coordinator at Allan Hancock College in Santa Maria, recently joined The Ag Meter to share how removing artificial food dyes from her son’s diet dramatically changed his behavior during early childhood. What began as a mother searching for answers turned into a powerful lesson on nutrition, awareness, and trusting parental instincts.
A Behavioral Shift That Raised Red Flags
As a toddler, Krier’s son Preston was exceptionally active. While energy is normal at that age, she noticed his behavior escalating into aggression, impulse control problems, and an inability to regulate his actions. The contrast with his older sister—who did not display these traits—made it clear something was off.
Determined to understand what was happening, Krier began researching behavioral conditions and unexpectedly came across the Feingold Association. The organization is based on research from Dr. Benjamin Feingold, a pediatrician and allergist who, decades ago, identified links between artificial food dyes, flavorings, certain preservatives, and behavioral problems in children.
Rather than immediately pursuing medication, Krier decided to try eliminating those additives from Preston’s diet. The results were immediate and striking. She described the difference as “night and day.” When artificial dyes accidentally crept back in—often through brightly colored party treats—the behavioral issues returned just as quickly.
What Eating Dye-Free Really Looked Like
Removing artificial dyes didn’t mean adopting extreme or unrealistic eating habits. Preston’s meals were simple and familiar. Breakfast often included oatmeal, eggs, or smoothies made with whole milk and fruit. Lunches were typically peanut butter and jelly sandwiches made with natural, dye-free ingredients. Dinners focused on meat and vegetables.
The real challenge wasn’t meals—it was snacks, candy, and convenience foods, where artificial colors are most common. School lunches were packed from home, though food trading with classmates sometimes caused setbacks. Even then, Krier said the effects were obvious.
As Preston grew older, athletics became a critical outlet for his energy. Sports helped him learn self-regulation, and as a young adult today, he no longer experiences the intense reactions he once did. Still, Krier emphasized that during key brain development years, avoiding artificial dyes was essential.
Signs Parents Should Watch For
Krier explained that her son’s behavior went far beyond normal childhood roughhousing. He would throw objects, punch walls, and appear unable to control his body. Importantly, she stressed that he wasn’t a mean child—he simply lacked impulse control when exposed to certain additives.
Many artificial food dyes are petroleum-based and can remain in the body for days. That means behavior may not improve instantly after elimination, and symptoms can return for several days after exposure. For that reason, Krier recommended making dietary changes during school breaks when parents have more control.
Balancing Real Life and Healthy Choices
Holidays like Halloween weren’t off-limits. Instead, Krier found compromises—allowing her son to trick-or-treat, then trading dyed candy at home for natural alternatives. The goal was balance, not isolation.
She also addressed the importance of physical activity, especially as childhood obesity rises and outdoor access becomes more limited. When outdoor play isn’t possible, she encouraged movement-based indoor activities that keep kids physically engaged.
Why This Conversation Matters Now
As national attention turns toward artificial food dyes and food system transparency, Krier believes parents are finally getting support for concerns many have had for years. Her message is simple but powerful: trust yourself. Parents know their children best.
To hear Erin Krier share her full story—including practical advice, research insights, and why she believes this issue is long overdue—listen to the complete interview on The Ag Meter.