Zenith Within by Sara Redondo, MD, MS | Substack

Boost Your Mood Naturally—3 Proven Ways Backed by Science

How to heal a low mood without a prescription (sorry Big Pharma!)

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Big Pharma Doesn’t Want You To Get Better—Only Medicated

Aug 6, 2025 • Sara Redondo, MD, MS

Unlock Longevity with This 16-Minute Heart Routine

Nov 22, 2025 • Sara Redondo, MD, MS

5 Health Truths You’ll Never Hear In A Clinic

Oct 22, 2025 • Sara Redondo, MD, MS

Sleep Is the First Domino—Fix It and Feel the Difference

Jan 10 • Sara Redondo, MD, MS

Lasting Habits Series

The Proven Strength Plan for Healthy Aging

Lasting Habits Series Part 7: The Most Evidence-Backed Way to Age Well Starts With Resistance

Feb 21 • Sara Redondo, MD, MS

The Best Add-On for Better Mood and Satiety

Lasting Habits Series Part 6: Make Your Meals More Satisfying and Your Mood More Resilient

Feb 14 • Sara Redondo, MD, MS

Big Food’s Cravings Trap Ends Here—Take Back Control, for Good

Lasting Habits Series Part 5: Ultra-Processed Foods & Cravings (Break the Autopilot)

Feb 7 • Sara Redondo, MD, MS

Aging Accelerates When You Skip This One Daily Habit

Lasting Habits Series Part 4: Hydration (Energy + Healthy Aging)

Feb 1 • Sara Redondo, MD, MS

What Doctors Don't Tell You (But Should)

How to Exercise for Better Cancer Protection

Cancer Prevention Series Part 3: Exercise

Jan 3 • Sara Redondo, MD, MS and Daniel Flora, MD

Cancer-Proof Your Meals With These Powerful Foods

Cancer Prevention Series Part 2: Foods and Diets That Fight Cancer

Dec 20, 2025 • Sara Redondo, MD, MS

Top 10 Cancer Prevention Habits Backed by Science

Cancer Prevention Series Part 1: Official Worldwide Guidelines

Dec 13, 2025 • Sara Redondo, MD, MS

Feel Better with This Gratitude Prescription

Even on hard days, this gives your nervous system something to hold onto.

Nov 29, 2025 • Sara Redondo, MD, MS

Health Myths Debunked

How to Strengthen Your Body’s Armor Against Time

Part 2 of 2: Cardio vs. Strength Exercise

Oct 8, 2025 • Sara Redondo, MD, MS

17 Cancer Myths Busted By Science—What Most People Get Wrong

Science vs. cancer myths: 17 claims you shouldn’t trust

Jul 23, 2025 • Sara Redondo, MD, MS

Frozen vs. Fresh Foods: The Science-Backed Truth You Need Now

Discover why “fresh” doesn’t always mean better and how to shop smarter

Jul 9, 2025 • Sara Redondo, MD, MS

Should You Go Gluten-Free? A Doctor’s Uplifting Truth For Better Health

Day 8 of 10 — The Science-Based Nutrition Course to Transform Your Health

Jun 11, 2025 • Sara Redondo, MD, MS

The Home Apothecary — No Prescriptions Required

Hormones Causing Daily Chaos? Regain Calm & Control Now

Natural, evidence-based ways to restore hormonal balance and feel like yourself again

Oct 15, 2025 • Sara Redondo, MD, MS

How To Strengthen Your Immune System Naturally (What Actually Works)

Natural, evidence-based ways to strengthen immunity and fortify your defenses year-round

Sep 25, 2025 • Sara Redondo, MD, MS

Beyond Painkillers: The Natural Breakthrough That Eases Everyday Pain

Natural, evidence-based ways to calm chronic pain at its root without relying on meds

Sep 18, 2025 • Sara Redondo, MD, MS

Natural Remedies To Reset Your Mind And Body—The Home Apothecary

Natural, evidence-based ways to soothe stress, quiet anxiety, and reclaim restful sleep

Sep 3, 2025 • Sara Redondo, MD, MS

Science-backed, holistic health guidance from a Medical Doctor to help you feel your best.

Longevity

How to Exercise for Better Cancer Protection

Cancer Prevention Series Part 3: Exercise

Jan 3 • Sara Redondo, MD, MS and Daniel Flora, MD

Cancer-Proof Your Meals With These Powerful Foods

Cancer Prevention Series Part 2: Foods and Diets That Fight Cancer

Dec 20, 2025 • Sara Redondo, MD, MS

Top 10 Cancer Prevention Habits Backed by Science

Cancer Prevention Series Part 1: Official Worldwide Guidelines

Dec 13, 2025 • Sara Redondo, MD, MS

Unlock Longevity with This 16-Minute Heart Routine

Heart insurance: the quick habit that outperforms 10,000 steps

Nov 22, 2025 • Sara Redondo, MD, MS

Mental Health

Grieving During the Holiday Season

My story and why I'm here

Dec 6, 2025 • Sara Redondo, MD, MS

Your Stress Reset Starts Here—And It’s 100% Free

Discover 8 proven, science-backed tools to calm your body, clear your mind, and take back your day—without spending a dime.

Sep 10, 2025 • Sara Redondo, MD, MS

Natural Remedies To Reset Your Mind And Body—The Home Apothecary

Natural, evidence-based ways to soothe stress, quiet anxiety, and reclaim restful sleep

Sep 3, 2025 • Sara Redondo, MD, MS

Big Pharma Doesn’t Want You To Get Better—Only Medicated

Tired of masking symptoms? Learn how to naturally heal anxiety, insomnia, and depression—without side effects or prescriptions.

Aug 6, 2025 • Sara Redondo, MD, MS

Weight Loss

How To Lose Weight Without Dieting Using The Body Clock Fat-Burning Method

Discover the simple meal timing plan that boosts metabolism, burns fat, and keeps cravings away—without counting a single calorie.

Aug 13, 2025 • Sara Redondo, MD, MS

GLP-1 And Weight Loss: The Full Truth Your Body Deserves

Weight Loss With GLP-1: What Most People Miss

Jul 30, 2025 • Sara Redondo, MD, MS

Intermittent Fasting: Everything You Need to Know for Success (eBooks, FAQs, Myths, Health Benefits, How-To, Delicious Recipes and Studies…

Expert Insights from a Medical Doctor & a Nutritionist

Feb 5, 2025 • Sara Redondo, MD, MS and Beth Bollinger

The Truth About Keto: Health Benefits & Weight Loss Mistakes

Part 1 of 2: Ketogenic diet series—how to lose weight with confidence

Feb 1, 2025 • Sara Redondo, MD, MS

Nutrition

The Dirty Dozen & Clean Fifteen 2025—Shopper's Guide to Pesticides in Produce

Hidden Chemicals: 12 Contaminated Foods—15 You Can Trust

Aug 20, 2025 • Sara Redondo, MD, MS

How To Lose Weight Without Dieting Using The Body Clock Fat-Burning Method

Discover the simple meal timing plan that boosts metabolism, burns fat, and keeps cravings away—without counting a single calorie.

Aug 13, 2025 • Sara Redondo, MD, MS

Frozen vs. Fresh Foods: The Science-Backed Truth You Need Now

Discover why “fresh” doesn’t always mean better and how to shop smarter

Jul 9, 2025 • Sara Redondo, MD, MS

The Dirty Dozen & Clean Fifteen 2024

Hidden Chemicals: 12 Contaminated Foods—15 You Can Trust

Apr 23, 2025 • Sara Redondo, MD, MS

Science-backed, holistic health guidance from a Medical Doctor to help you feel your best.

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