Jaclyn Rosen,
MS, CNS, CDN
Board-Certified
Clinical Nutritionist
Connect the dots.
Understand why.
Feel better.
Personalized, evidence-based nutrition for gut health, metabolism, weight management, and mental well-being.
I look beyond what you eat, considering your symptoms, bloodwork, gut health, nutrient status, sleep, stress, movement, supplements, and lifestyle to identify what may be contributing to the way you feel and create a personalized plan to
help you feel better.
In-person in Babylon & Syosset, NY
Virtual appointments available
Insurance & self-pay options available
Aetna • Cigna • Northwell Direct • Anthem •
NYSHIP • UnitedHealthcare
Welcome
Hi, I'm Jaclyn, a Board-Certified Clinical Nutritionist based in Babylon, NY. I take a personalized, comprehensive approach to nutrition, helping clients connect the dots and better understand what may be contributing to digestive issues, fatigue, weight changes, anxiety, inflammation, and other symptoms that can be difficult to make sense of.
My approach combines whole-food nutrition, sustainable habit change, a comprehensive health history, and evidence-based assessment of bloodwork and specialized testing when appropriate so we can look beyond individual symptoms and understand the bigger picture.
I created my Essential Core4 Framework to assess four interconnected areas- inflammation & stress, metabolism & nutrient status, gut & immune health, and hormones & mood and turn what we learn into a realistic, personalized plan you can actually follow.
Nutrition Specialties
I help clients with a range of concerns across three interconnected areas of health:
Energy, Mood & Overall Well-Being → Fatigue, low energy, brain fog, difficulty concentrating, poor sleep, stress, anxiety, low motivation & nutrient deficiencies.
Metabolic Health, Inflammation & Weight → Weight gain or difficulty losing weight, elevated blood sugar or prediabetes, high cholesterol or triglycerides, aches & pains.
Gut Health & Digestion → Bloating, constipation, reflux, irregular bowel habits, abdominal discomfort & other digestive concerns.
What Clients Are Saying
The Essential Core4 Framework
Everything is connected.
The Essential Core4 Framework is how I organize my comprehensive approach to nutrition, looking across four interconnected areas that can influence how you feel.
Rather than focusing on a symptom in isolation, I consider your nutrition, symptoms, health history, bloodwork, medications and supplements, sleep, stress, movement, and specialized testing when appropriate to help connect the dots and identify potential contributors.
From there, we create a personalized, evidence-based plan based on what your body actually needs.
1. Blood Sugar & Metabolism
Looking at blood sugar regulation, energy, appetite, metabolic health, body composition, and how your body is being fueled.
2. Gut Health & Inflammation
Looking at digestion, gastrointestinal symptoms, gut function, the microbiome, immune health, and factors that may influence inflammation.
3. Nutrient Sufficiency
Looking at nutrient intake and status, potential gaps, and whether you're getting enough protein, fiber, vitamins, and minerals to support your needs.
4. Sleep, Stress & Movement
Looking at lifestyle factors that can influence energy, recovery, appetite, mood, metabolic health, and overall well-being.
These areas don’t exist in isolation. The Essential Core4 Framework helps me look at the bigger picture, understand how different aspects of your health may be connected, and determine where nutrition and lifestyle changes may have the greatest impact.
Does This Sound
Like You?
You don’t need another restrictive diet or overwhelming list of rules. You need to understand why you don’t feel your best and have a realistic plan for what to do about it.
You may be in the right place if any of these sound familiar:
“I'm tired of feeling bloated and uncomfortable all the time.”
“My energy, mood, and cravings are all over the place.”
“I've done the labs, but I still don't have a clear plan.”
“I want to eat better without tracking every bite or cutting everything out.”
Ways to Work With Me
1:1 Personalized Nutrition
Comprehensive, individualized nutrition care designed around your health, symptoms, goals, lifestyle, needs, and overall wellness.
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Corporate
Wellness
Evidence-based nutrition education, wellness presentations, and customized programming for companies and organizations.
Inquire
Speaking &
Partnerships
Nutrition education, speaking engagements, professional collaborations, and wellness partnerships.
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