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The Diet Clinic

Your Nutrition.
Your Goals.
Your Plan.

Evidence-based nutrition counseling designed around your lifestyle, health conditions, and personal goals.

  • Clinical Dietitian
  • Personalized Meal Plans
  • Online & In-Person Consultations
Free Tool

Calorie & BMR Calculator

Estimate your daily calorie needs based on your personal stats

Fill in the form and click Calculate to see your results

This calculator provides general estimates only and does not replace professional medical, nutritional, or healthcare advice. Results are based on the Mifflin-St Jeor equation.

Meet Marita Kallas

Clinical Dietitian & Wellness Consultant

Over 10 years of experience in changing people's lives

Focused on natural and organic living, helping clients build sustainable habits that nourish the body and support overall wellbeing.

Combines evidence-based nutrition with a whole-person approach, recognizing the connection between food, lifestyle, physical health, and long-term vitality.

Creates personalized wellness plans tailored to each individual's unique needs, health concerns, preferences, and goals.

Emphasizes lasting lifestyle changes rather than restrictive diets, empowering clients to achieve sustainable results and lifelong health.

Committed to compassionate, client-centered care, providing ongoing guidance and support every step of the wellness journey.

Variety of fresh fruits and vegetables representing healthy nutrition

If you're dealing with any of the following cases, we're here for you

Weight Loss
Weight Gain
Diabetes Management
PCOS & Hormonal Health
Hyperlipydemia
Heart Diseases
Hypertension
IBS & Digestive Issues
Sports & Athletic Performance
Pregnancy & Prenatal Nutrition
Baby & Infant Nutrition
Thyroid Conditions

Customized Nutrition

Customized nutrition strategies designed for your lifestyle, preferences, and health goals

Evidence-Based Nutrition

Scientific approach backed by the latest clinical nutrition research

Holistic & Organic

Whole-body health strategies emphasizing natural, clean, and organic living

Clinical Expertise

10+ years of experience in medical nutrition therapy and wellness

Ongoing Support & Follow-up

Regular check-ins, tracking, and adjustments to support your progress

Sustainable Habits

Long-term lifestyle changes — not crash diets or short-term fixes

One-on-One Consultations

Dedicated time and undivided attention to understand your unique needs

Success Stories

Real results from real clients who transformed their health

"Marita's personalized approach changed my life. She didn't just give me a diet — she taught me how to nourish my body. The weight loss was sustainable and I feel healthier than ever."

Sarah M.

Lost 18 kg in 6 months

"My diabetes control has improved dramatically. Marita helped me understand how food affects my blood sugar and built a plan that fits my lifestyle."

Ahmad K.

Significantly improved A1C

"I came in feeling constantly tired. Within weeks of following her plan, my energy soared. I finally feel like myself again."

Lina H.

More energy, better vitality

"As an athlete, nutrition is everything. Marita's sports nutrition guidance helped me optimize performance and recovery in measurable ways."

Omar S.

Enhanced athletic performance

How It Works

Your journey to better health in four simple steps

01

Book Your Consultation

Schedule your initial appointment via WhatsApp or our contact form. Choose a time that works for your schedule.

02

Complete Your Assessment

We'll conduct a comprehensive nutritional assessment, discussing your health history, goals, and lifestyle.

03

Receive Your Personalized Plan

Get a customized nutrition plan designed specifically for your needs, preferences, and health objectives.

04

Achieve Long-Term Results

Follow your plan with ongoing support and adjustments to ensure sustainable, lasting health improvements.

Frequently Asked Questions

Everything you need to know about our nutrition services

Your first consultation includes a comprehensive nutritional assessment where we discuss your health history, current eating habits, lifestyle, goals, and any medical conditions. This typically takes 60–90 minutes and forms the foundation for your personalized nutrition plan.
Every meal plan is tailored to your specific needs, preferences, cultural background, lifestyle, and health goals. We consider your food preferences, allergies, schedule, cooking abilities, and budget to create a realistic and sustainable plan just for you.
We offer ongoing support through follow-up consultations, progress monitoring, plan adjustments, and WhatsApp communication. Regular check-ins help ensure you stay on track and make necessary modifications as your needs evolve.

Get in Touch

Ready to start your journey to better health? Contact us today

Marita Kallas, Clinical Dietitian

Your trusted partner for evidence-based nutrition and wellness

Location

Horsh Tabet, Lebanon

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Book Your Consultation

The Diet Clinic

Evidence-based nutrition counseling designed around your lifestyle, health conditions, and personal goals.

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© 2026 The Diet Clinic. All rights reserved.

Marita Kallas, Clinical Dietitian • Horsh Tabet, Lebanon