Clinical nutrition with heart

Personalized nutrition for cardiometabolic health and resilience

"I love food - it’s why I started studying nutrition. You can continue to enjoy that connection with food in a way that helps you feel your best and supports your health.”

— Michelle Shamailov, RD, LD, CCTD, Founder

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Where clinical expertise meets real life.

Led by an accomplished cardiac and heart transplant dietitian, Longevita delivers personalized, medically grounded nutrition care designed to improve healthspan and wellness.

We combine evidence-based care for complex health needs with empathy and a realistic approach to translate clinical expertise into sustainable day-to-day habits.

Whether you're navigating a new diagnosis, recovering from a health event, or proactively investing in your long-term health…

We’ll meet you where you are — and help guide you where you want to be.

Our specializations

Cardiac & heart failure

Cardiovascular care from prevention to advanced disease
Metabolic health

Diabetes, weight management, GLP-1 support, and cardiometabolic risk reduction
Surgical optimization

Pre- and post-operative support (cardiac, orthopedic, bariatric, and more)
Recovery & rebuilding

Restoring strength and vitality after illness, hospitalization, or significant weight loss
Healthy aging

Supporting independence, resilience, and wellbeing

Explore services

Designed to support vitality at every stage of health.

Why Longevita

We offer virtual consultations throughout Texas, in-home services in the greater Austin area, and partnership services for physician practices.

Private-pay care allows us to focus entirely on you—no referral barriers, no prior authorizations, and no insurance-driven limitations.

Every session is tailored to your needs, preferences, and learning style for recommendations that are not only evidence-based, but truly livable.

Our Philosophy

At Longevita, clinical nutrition expertise meets whole-person care.

While we always stay evidence-based and rooted in medicine, Longevita understands the value of a holistic approach incorporating mind, body, and lifestyle into your care. When one of these parts is broken, the whole system struggles.

We will educate and implement clinical guidelines; we will help provide structure and results-driven interventions. We also understand that eating behavior is shaped by more than knowledge. Many factors play a role in what we reach for, what we avoid, and what actually sticks. Flexibility matters. Your quality of life matters.

For effective nutrition counseling, we’ll account for all of it.