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Testimonials

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I understood how to eat before, I worked out 5 days a week, did all the right things and nothing happened… I lost 15lbs with Jackie because she finds what is holding you back and fixes it.

-C.C

It’s so great to have someone that actually hears you out and wants to fix things and not just medicate

-S.R

I was dealing with weight loss resistance for 2 years, I ate clean and exercised 4-5x/week- I had always been told my labs were fine and  was feeling so down on myself.  Now after working with Jaclyn I’m down 20lbs.  

-M.G

What makes her so special isnt just her knowledge, its her ability to see the whole person...And she has been a gift for helping people like me feel hopeful again…Something missing from modern medicine .

-S.B

Working with Jackie was truly life-changing. I struggled with perimenopause symptoms—weight gain, fatigue, joint pain, hot flashes, and irritability—that left me feeling unlike myself. In just 12 weeks, Jackie’s program completely shifted my health.

Through labs, a personalized eating plan, and targeted supplements, I finally understood how to fuel my body. The weight started coming off, my energy returned, and I felt lighter, happier, and healthier—all without medication.

Even six weeks after finishing, I’m still at my goal weight and confident in how to eat for lasting results. Jackie’s guidance, accountability, and resources are a gift. I cannot recommend her enough

-D.S

Ready to Get Answers?

You don’t have to settle for “normal.” Take the first step toward true, lasting relief and book your free discovery call today.
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When ‘Normal’ Doesn’t Feel Normal

Gut First Nutrition helps women 35+ uncover the real root causes of stubborn weight gain or resistance to weight loss, chronic fatigue, hormone imbalances, and digestive distress—especially when doctors say “everything looks normal

Meet the Experts

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Jaclyn Ventre, RD, CDN
Founder
Functional & Integrative Dietitian

With over 25 years combined experience in functional and integrative nutrition, we specialize in helping women decode the real reasons behind their symptoms—so they can finally get answers, feel better, and take back control of their health.

At Gut First Nutrition, we run comprehensive in depth labs to get to the root cause. We use functional nutrition protocols that support your gut, nourish your adrenals, thyroid, and liver detox pathways. Instead of restrictive diets that stall your metabolism, we teach you how to fuel your body the right way so you never have to ‘diet’ again. 

From stubborn weight gain and chronic fatigue to bloating, hormone imbalances, and heightened anxiety, we’ve seen how often these concerns are brushed off in conventional medicine, especially in the “peri” and “meno” phases of  life.

WE'RE HERE TO CHANGE THAT! 

Symptoms aren’t random - they’re messages. With the right testing we can decode them and uncover what’s truly driving the dysfunction. 





 

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Jessica Cresci, CHHC
Functional Nutritionist 

Choose Your Path

Comprehensive Labs + Personalized Protocol

  • Includes in-depth comprehensive labs and one hour lab analysis with a one-on-one virtual call to review lab results and supplement protocol designed to address root cause issues.

Add‑On: 6‑Month Follow‑Up Labs (Save When You Bundle)
Repeat your comprehensive labs at the six month mark and compare your “before” and “after” results—pre‑book your follow‑up testing to lock in a special discounted rate. This side‑by‑side comparison gives you clear, data‑driven insights so we can fine‑tune your protocol and keep your progress moving forward.

Gut - Revive- 12 Weeks of working together 

  • In Depth Comprehensive Labs 

  • One-on-One Virtual Lab Review: A personalized session to review results and receive your customized supplement protocol designed to address root cause issues. 

  • Quick, under‑1‑minute modules that cover the three key systems of the body —plus simple meal recommendations, meal schedules, grocery lists, clean convenience picks for busy days, and a dining‑out guide.

  • Access to Busy Women's Anti Inflammatory Meal Guide - 50+ high protein meals with 5 ingredients or less in 15 min or less. 

  • Unlike one‑size‑fits‑all programs, our daily food journaling isn’t just busy work—it’s your direct line to personalized support.

    Every meal and snack you log is reviewed by the dietician who sends back feedback and provides any tweaks that should be made necessary for success. 

    That means you’ll learn exactly which foods fuel you best, nip cravings in the bud, and adjust your plan on the fly—so you stay motivated, confident, and consistently moving toward your health goals.   
     

  • (12) 1-hour Weekly Coaching calls; Requires discovery call to see if this program is right for you! 

Self-Paced Nutrition Guide

Learn a new approach to fueling your body in this phase of life in order to get it in the right environment for fat loss.

  • Learn how to eat to stabilize blood sugar and reduce inflammation.

  • Foundational Supplement Support: Simple, targeted essentials to help your body function at its best.

  • Simple 3: Choose from 50+ anti‑inflammatory recipes—each ready in 15 minutes or less, with 5 ingredients or fewer.

Add on Option:  Comprehensive Labs + Personalized Protocol (Save When You Bundle)

  • Includes in-depth comprehensive labs and one hour lab analysis with a one-on-one virtual call to review lab results and supplement protocol designed to address root cause issues.

What We Do at Gut First Nutrition

At Gut First Nutrition, we address & optimize the three main systems of your body—crucial for metabolic health and lasting vitality.
 
This isn’t about managing symptoms or a ‘quick fix’ weight loss program. It’s about getting the body systems working synergistically and obtaining the right environment for your body to heal.
 

  • Comprehensive lab testing - Unlike conventional labs that rely on broad population averages, we use optimal ranges which identify where the body needs support to heal and perform at its best.
     

  • ​Root Cause focus - We optimize gut health, balance blood sugar and hormones, and support liver detox pathways.
     

  • Metabolic Health - Learn how to eat to reduce inflammation and nourish the body rather than slow it down.


Paired with personalized supplement protocols based on lab results, our data‑driven, root‑cause approach ensures you’re not just masking symptoms, you’re healing from the inside out.

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