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Cullen Nutrition Simplified - Tired, Run-Down, and Sick? The Surprising Root Cause


Have you been noticing that you’re feeling more tired, run-down, and constantly battling colds? Or maybe you just want to avoid constantly being sick?

I remember when I was going through an extremely stressful time. I was constantly feeling bloated, fatigued, and getting sick more often than my son, who was in daycare during cold and flu season.

It felt like I was always one step behind, no matter how much I tried to rest or eat better.

The root of my issues? Poor gut health.

It turns out that 70-80% of your immune system is in your gut. And it does way more than just digest food—it’s the gatekeeper to your overall health, especially when it comes to fighting off illness.

When your gut is out of balance, your immune system struggles too, leaving you vulnerable to colds, viruses, and other health problems. It’s that constant cycle of feeling "off" and not knowing how to break free.

But when your gut is healthy, your immune system is strong, giving you the energy and strength to handle your day and feel your best. No more dragging through the afternoons or dreading the next cold season.



Contact Tanya Cullen

Cullen Nutrition Simplified
Registered Dietitian
Tanya Cullen

Tanya is a Registered Dietitian with over 17 years of experience and an Integrative and Functional Nutrition Certified Practitioner. She is passionate about helping women navigate perimenopause and menopause by focusing on root causes and empowering them to take charge of their health. Tanya’s simple, practical strategies boost energy, reduce bloating, and build confidence, helping women feel stronger, healthier, and more in control of their lives.

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