Sydney Lappe MS, RDN

Sydney Lappe is a St. Louis-based dietitian with over a decade of experience in nutrition writing and editing. She holds a Master's degree in Nutrition and Dietetics from Saint Louis University and has a background in psychology, shaping her understanding of the connection between food, fitness, and mental health.

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10 minute read
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Evidence Based
How to Boost Your Metabolism: Evidence-Based Strategies That Actually Work
A registered dietitian breaks down what actually boosts metabolism, from strength training and protein to sleep and stress, and what doesn't.
Updated on:
July 20, 2026
9 minute read
All
Evidence Based
PMOS (Polyendocrine Metabolic Ovarian Syndrome): What It Is, Symptoms, and How to Manage It
PMOS affects 1 in 8 people of reproductive age. See the symptoms, causes, and how a registered dietitian can help you manage it.
Updated on:
July 20, 2026
12 minute read
All
Evidence Based
Body Dysmorphia: What It Is, Signs to Watch For, and How to Get Help
Body dysmorphic disorder explained — signs, symptoms, how it differs from normal body image concerns, treatment options, and when nutrition support can help.
Updated on:
July 9, 2026
16 minute read
All
Evidence Based
How to Lose Belly Fat: Evidence-Based Strategies That Actually Work
Belly fat is stubborn — but it's not unmovable. Here are the evidence-based strategies that actually make a difference, without the gimmicks.
Updated on:
June 19, 2026
10 minute read
All
Evidence Based
Stomach Ulcer Diet: What to Eat and What to Avoid
What you eat can either soothe or aggravate a stomach ulcer. Here's a practical guide to the foods that help you heal — and the ones to avoid.
Updated on:
June 18, 2026
15 minute read
All
Evidence Based
How to Improve Gut Health: Simple Steps for Better Digestion and Overall Wellness
Small changes to your daily habits can make a big difference for your gut. Here's how to support better digestion and overall wellness — starting today.
Updated on:
June 11, 2026
10 minute read minute read
All
Evidence Based
How to Lose Weight Fast: Evidence-Based Strategies That Actually Work
Discover science-backed strategies to lose weight fast and keep it off. From nutrition tips to lifestyle changes - real methods that actually deliver results.
Updated on:
June 23, 2026
8 minute read
Gut Health
All
Evidence Based
What Is IBS? Understanding Symptoms, Causes, and Treatment Options
Struggling with digestive issues? Learn what IBS is, its common symptoms, potential causes, and the most effective treatment options to manage your health.
Updated on:
June 11, 2026
10 minute read
All
Evidence Based
Is Fasting Good for PCOS? What the Research Really Shows
Intermittent fasting is often hyped as a quick fix for weight loss and hormone health. However, when it comes to fasting for hormone balance and PCOS, the reality is more nuanced.
Updated on:
July 1, 2026
10 minute read
All
Evidence Based
How Much Weight Can You Realistically Lose in 3 Months?
A well-structured 3-month weight-loss plan can lead to real progress, while also building habits that support your health long after the initial timeline.
Updated on:
July 20, 2026
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