About PhytoSmart

Food history holds the clues to our modern health crisis.

Deena Sisitsky

Founder's Story

Building the Smarter Way Forward for Healthy Nutrition

Deena has always been a firm believer in “We are what we eat” and recognizing that life expectancy is decreasing in the 21st century, she began a search to explain the decline of our public health by looking to history for the answer.

Before the 1960’s the foods we consumed and even textiles we wore were “natural” and “made from scratch”. During the 1960’s and 1970’s, America became the “land of plenty” and a programmed shift was underway from “natural” and “made from scratch” to “processed” and “made for convenience”.

Deena observed that after decades of eating nutrient deficient ultra-processed foods it became clear that our collective health has suffered. Such unhealthy foods, abundantly consumed, created an epidemic of “lifestyle illnesses” and continued the reduction in average life expectancies.

Drawing on her pharma background, interest in nutrition, health and lifelong love of pets, she reached out to PhytoSmart co-founder Hiro Hara. Hiro is a scientist, who grew up in a veterinary family and who understood the value of nutrients found only in fresh foods, the fresh foods that are so important to keep pets and people active and vital throughout life.

Meet the Team

Science-Backed. Nature-Sourced. Health-Driven.

Together they founded PhytoSmart™ with the mission to sustainably produce vital phytonutrients that are essential to pets and people. To accomplish this they decided to first focus on omega-3 fatty acids and looked to its ubiquitous source – species of ocean algae. Five years of research and development resulted in their patented technology which continuously grows sustainable, safe and highly bioavailable forms of omega-3 essential fatty acids.

The result of their efforts are ZipZyme™ Paste by PhytoSmart™ and Krumble™. PhytoSmart™ products are a novel, innovative and disruptive nutritional therapy. PhytoSmart™ supports pet health from the inside out. Whether feeding your pet PhytoSmart™ to address a particular health condition or as an “apple a day” preventive protection, PhytoSmart™ helps to support pet health and vitality throughout every stage of life.

Deena Sisitsky

Deena Sisitsky

Co-Founder, MBA, CEO

Deena is a self-proclaimed pet lover with a proven executive management track record driving growth in the pharmaceutical and technology industries. She oversaw the introduction including gaining regulatory approval of a Pharma product during a previous global epidemic that gained “drug of choice” status among infectious disease physicians.
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Martin Sabarsky

CEO of Cellana

B.A., Brown University; J.D., Harvard Law School; M.B.A., Rady School at UC San Diego
25+ years cleantech executive; lawyer & investment banker Oversaw $30MM of funding to and investment by Cellana between 2011 and 2018
President & Chairman, Algae Biomass Organization (2015 – 2016)

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Hiro Hara

Co-Founder, MBA

Hiro helped introduce US medical technology companies to the Asian market for much of his career. He developed PhytoSmart’s patented system to produce high yield heterotrophic algae continuously in a sterile environment, in contrast to the more expensive yet less productive traditional heterotrophic algal fermentation technology.
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Patrick Cregten

Operations Director

Patrick is a marine biologist and aquaculturist educated at James Cook University in Australia. He had five years of professional experience in the U.S. and Canada before joining the PhytoSmart™ team. Patrick’s expertise in recirculating aquaculture systems affords him the mechanical aptitude, teamwork, and management skills that make him integral to PhytoSmart’s daily operating platform
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Tazz Latifi

Marketing & Business Development

Tazz Latifi drives PhytoSmart’s strategic growth and industry engagement, bringing over 15 years of experience in pet health, nutrition, and brand development. She’s known for translating complex nutritional science into clear, actionable insights for professionals and pet owners alike. Tazz is the founder of The Petropolist, a pet nutrition consultancy, and Pet Industry Resource, a design and marketing agency focused on elevating brand communication and educational standards in the pet and wellness space.
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Dr. Jeffrey Feinman

VMD, CVH, Veterinary Science Advisor, B.A.

Dr. Feinman holds molecular biology and veterinary degrees from the University of Pennsylvania. His work focuses on melding the current conventional veterinary medical paradigm with the potentially more sustainable model of ethnoveterinary medicine practiced by indigenous people who live in accord with nature to care for their animals. Dr. Feinman integrates molecular biology with homeopathy to activate and work with natural healing mechanisms. He devotes much of his energies to his organizations Holistic Actions! and The Holistic Actions! Foundation.

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Larry Dressler

Operations Advisor

Lawrence V. Dressler is a dynamic C-level executive and serial entrepreneur with deep expertise in business development, product innovation, and biotechnology. As Founder and CEO of LVD Marketing, LLC (dba Agcore Foods), he has led the creation of high-protein, grain-free pet foods and pioneered algae-based plant protein solutions for both consumer and commercial markets. Lawrence has over two decades of experience scaling companies, directing multimillion-dollar P&L operations, and securing investments and grants. His ventures have served clients in the top food, zoo, aquarium and pet industries. With a background in vegetable oil manufacturing and a track record of innovation—including multiple patents and national collaborations—Lawrence blends strategic insight with hands-on operational leadership to drive growth and impact in the health, food, and sustainability sectors.
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Dr. Jed Fahey

DSc. Scientific Advisor

Dr. Fahey is a nutritional biochemist with broad training and extensive background in plant physiology, human nutrition, phytochemistry and nutritional biochemistry and biotechnology. He spent 27 years as a faculty member at the Johns Hopkins School of Medicine. There, Dr. Fahey helped to create, and oversee the Cullman Chemoprotection Center, which has developed plant-based agents for enhancing healthspan for many years. Dr. Fahey is now an adjunct faculty member at the Johns Hopkins School of Medicine, and the University of Maine, Institute of Medicine.

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