Doctors Best

Natto-Serra

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Get the best of all worlds with this powerful duo of metabolic enzymes for respiratory, cardiovascular and immune system function. 

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Product overview

Doctor's Best Natto-Serra is a combination of two well researched, natural proteolytic enzymes; Nattokinase and Serrapeptase. Proteolytic enzymes breakdown proteins in the body. This dynamic duo provides much-needed support for healthy sinus and airway function by breaking down unhelpful or allergenic protein complexes in the respiratory tract. It also benefits the cardiovascular system by supporting normal blood pressure and circulatory health.

  • Supports cardiovascular and circulatory health as well as respiratory and immune system function
  • Maintains healthy blood pressure balance
  • Offers support for joint discomfort and supports tissue repair.
  • Delayed-release coating to protect enzymes from gastric acid degradation
What is Nattokinase?

Nattokinase is derived from "natto”, a traditional Japanese food of fermented soybeans. Nattokinase is a fibrinolytic enzyme, meaning it supports the breakdown of inappropriate aggregation of fibrin, a protein involved in blood clotting. Its actions are very similar to those of a naturally-occuring enzyme in the body called plasmin, which breaks down many types of blood proteins, including fibrin clots.

Excess fibrin in the body may contribute to cardiovascular problems, blood pressure imbalance, poor circulation, and slow tissue repair. Nattokinase plays an important supporting role to healthy blood flow, which supports the health of the heart, brain and muscles by supplying vital oxygen supply to all organs.

What is Serrapeptase?

Serrapeptase is a well-researched proteolytic enzyme that has been shown to be helpful in many areas of the body. It supports circulation and cardiovascular health, contributes immune support especially for respiratory complaints by reducing naso-sinus and bronchial mucus viscosity, and also supports tissue repair and joint comfort. Serrapeptase was first isolated from the non-pathogenic Serratia bacteria found in the Japanese silkworm that used the enzyme to break down its cocoon walls.

Although serrapeptase is susceptible to breakdown by stomach acid, Doctor's Best Natto-Serra uses Serrateric™, a special coating that protects the enzyme until it reaches the intestines and therefore optimizes absorption.

Ingredients
Serrapeptase Enzyme (from Serratio sp.) 40,000 SPU*, Nattokinase (from fibrinase enzyme) 2,000 FU**, Calcium (from tricalcium phosphate and calcium stearate in Serrateric™) 29 mg. Other ingredients: Serrateric™ (maltodextrin, tricalcium phosphate, calcium stearate, medium chain triglycerides), delayed release capsule (Hypromellose, gellan gum, purified water). Contains soy.
*SPU-serratiopeptidase activity units
**FU-fibrinolytic activity units
Does not contain: GMO. 100% vegan.
Suggested Use
Recommended intake:
Suggested Adult Use: Take 1 capsule daily without food, or as recommended by a health practitioner.
Cautions
  • Not recommended for individuals who are pregnant, nursing, allergic to soy, or have poor digestion.
  • Consult a physician before use if taking blood thinners.
  • Stop taking if you experience nausea, vomiting or stomach upset.
  • Store in a cool dry place.
  • Do not use if safety seal is broken or missing.
  • Keep out of reach of children.
  • Always read the label and use as directed. If symptoms persist see your healthcare practitioner.

The Doctor's Best difference

Doctor's Best is not interested in fads, trends or quick fixes. They want to know what works, how it works, and why it works, well before they offer it to you. They collaborate with nutritional scientists who are developing new ingredients and they study their clinical findings to determine the most effective way to provide the desired results. On every bottle, Doctor's Best lists all the ingredients, describes how the product works, and cites studies that support claims because they know getting all of your questions answered is what matters most.

Quality ingredients

Only trademarked, branded, and high-quality materials are used in Doctor's Best products; they are matched to the specific ingredient and strength studied in the clinical studies. All raw materials are verified for quality, added assurance that you'll never find substitutes in their products. Many of the products are non-GMO, gluten free, soy free and vegetarian or vegan. Doctor's Best use only cGMP-certified manufacturing facilities and their products are all GMP-certified, meaning consumers can be assured that the product is of an extremely high standard and contains nutrients targeted at sepcific health needs.

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