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Russell Smith, AZ

What I really like about Mega Digest is the fact that all their enzymes are plant derived.  For a vegetarian like me, it was hard finding a quality product that would deliver promising results and still be fit for my vegan lifestyle.  I recommend this to all my family and friends without having to worry about it not working for them.  This product does EXACTLY what it claims.  At 50, I feel more energized now than I did when I was in my twenties. I just wish I had found Mega Digest earlier!
With regular use of Mega Digest, I am digesting my food very well and remain more active and energized.

About Us

Zast Manufacturing

At ZAST Nutraceuticals, we are committed to providing scientifically engineered dietary supplements to help you achieve optimal health. Our team of talented researchers and product formulators utilizes the most cutting-edge science in order to bring you products of exceptional quality.

Our experience, dedication, in-depth knowledge of health and nutrition, and commitment to quality is your assurance that every ZAST product has been designed with your health in mind.

From digestive support products, to glucose and lipid management supplements, we will continue to use only the finest ingredients on the planet to ensure the safety and effectiveness of our products.

How do we guarantee the quality of our Products?

Our production is done at GMP approved facility in U.S.A and consists of approximately 16,000 square feet dedicated to production, 8,000 square feet dedicated to storage of raw materials, and 12,000 square feet for bottling, labeling and packaging. The daily manufacturing capacity is approximately 14 million capsules, 15 million tablets and 100,000 packaged bottles.

The in-house, state-of-the-art laboratory functions as Quality Control Department and also as an independent facility. A summary of the equipment includes a microbiological laboratory, HPLC’s, Atomic Absorption, Dissolution, FTIR, UV detector, Gas Chromatograph, ICP, Stability and Rapid Still. The laboratory employs full-time chemists; many with PhD degrees and 10 years or more of experience in the nutritional supplements field. A microbiologist is also on staff. Our dedicated team of professionals, under strict manufacturing control systems, maintains highest quality standards.


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