Kristen N. Smith, PhD, RDN, LD Archives

Kristen N. Smith, PhD, RDN, LD

Kristen N. Smith, PhD, RDN, LD, is a registered and licensed dietitian with nearly 20 years of experience in the health and nutrition field. She also serves as executive editor of Environmental Nutrition, where she oversees the editorial development and contributes consumer-focused science and health articles.

Nutrition

Vitamin B12 Deficiency: Why It Matters and How to Spot It

Kristen N. Smith, PhD, RDN, LD | November 14, 2025

Vitamin B12 is a crucial micronutrient that supports many essential bodily functions, so it’s vital to avoid vitamin B12 deficiency. Understanding this vitamin’s importance and...

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Nutrition

Water Fasting: What You Need to Know

Kristen N. Smith, PhD, RDN, LD | October 14, 2025

After reading the headline to this article, you’re probably wondering, what is water fasting? The term “water fasting” is exactly what the name implies: going...

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Nutrition

Curious About Carnivore Diet Benefits?

Kristen N. Smith, PhD, RDN, LD | October 8, 2025

Weight loss. Better insulin sensitivity. You might have heard about these carnivore diet benefits. But what is the carnivore diet? The carnivore diet is an...

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Stress

How to Lower Cortisol: The Body’s Stress Hormone

Kristen N. Smith, PhD, RDN, LD | September 19, 2025

Emotional stress can trigger elevations of cortisol, an important steroid hormone. Chronically high cortisol levels may contribute to abdominal obesity and an array of other...

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Digestive

How to Recognize Food Poisoning Symptoms

Kristen N. Smith, PhD, RDN, LD | September 16, 2025

Food poisoning happens when you eat food or drink water that’s been contaminated with harmful bacteria, viruses, or toxins. It’s more common than you might...

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