L-Carnitine Fumarate featuring Sigma Tau® Carnitine 855mg

180 Veggie Caps

DRB-00154

Health interest: Sports Nutrition
  • Doctor’s Best L-Carnitine Fumarate helps the body burn fat for energy and helps maintain a healthy heart and cardiovascular system. *

  • L-carnitine promotes energy production in cells by transporting fatty acids into the mitochondrion, an intracellular structure that generates metabolic energy in the form of ATP. *

  • Fumarate, a naturally occurring compound in the body, serves as an intermediate in the Krebs cycle, a key energy-producing process that takes place in the mitochondrion.

  • Doctor’s Best Carnitine Fumarate contains Biosint™ L-carnitine fumarate which is derived from pharmaceutical grade L-carnitine manufactured by a patented, FDA-approved process.

  • Gluten Free, Non-GMO, Vegetarian, Vegan

Available Sizes

60 Veggie Caps, 180 Veggie Caps

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What is Doctor’s Best L-Carnitine Fumarate?

Doctor’s Best L-Carnitine Fumarate helps the body burn fat for energy and helps maintain a healthy heart and cardiovascular system. * L-Carnitine is a nutrient that promotes energy production in cells by transporting fatty acids into the mitochondrion, an intracellular structure that generates metabolic energy in the form of ATP. * In this role, L-carnitine helps the body efficiently metabolize fat. Fumarate is a naturally occurring compound in the body. Fumarate serves as an intermediate in the Krebs cycle, a key energy-producing process that takes place in the mitochondrion. Doctor’s Best Carnitine Fumarate is derived from pharmaceutical grade L-carnitine manufactured by a patented, FDA-approved process.

How does it work?

L-carnitine promotes energy production in cells by transporting fatty acids into the mitochondrion. Its primary function is to transfer long-chain fatty acids across the inner mitochondrial membrane. Fatty acid molecules are activated to coenzyme A (CoA) esters in the cytoplasm of the cell, and then esterified to L-carnitine. The combination of a fatty acid molecule and L-carnitine is called “acyl-carnitine.” Much of the body L-carnitine content is stored in the form of acyl-carnitine. The mitochondrion is the cell’s energy-generating furnace. Called an “organelle,” the mitochondrion is a self-contained structure inside the cell. Like all cellular structures, the mitochondrion is surrounded by a membrane. This membrane is an impenetrable barrier to acyl-CoA esters; passage across the membrane requires L-carnitine as a transporter. On the inside of the mitochondrial membrane, the acyl-CoA esters are made available to be metabolized through the process of beta oxidation. One of the key metabolic byproducts of this process is acetyl-CoA, also called “active acetate,” which enters the Krebs cycle (also known as the “citric acid cycle”) to supply fuel for production of ATP, the cell’s primary energy “currency.” L-Carnitine shuttles excess fatty acid residues out of the mitochondrion and in this role is essential for preventing toxic buildup of fatty acids inside the mitochondrion.

What is the difference between the various carnitine products that Doctor's Best offers?

Doctor's Best offers 2 different carnitine products: L-Carnitine Fumarate, and Acetyl-L-Carnitine.

L-Carnitine Fumarate is in the form of L-Carnitine fumarate

Both products contain BIOSINT™ L-Carnitine, which is manufactured in Italy by the reputable company Sigma-Tau. Sigma-tau® HealthScience, Inc has the only FDA-approved pharmaceutical batch process system for consistent L-Carnitine quality, and has been manufacturing L-Carnitine derivatives for more than 30 years.

What is the difference between the various carnitine products that Doctor's Best offers?

Doctor's Best offers 2 different carnitine products: L-Carnitine Fumarate, and Acetyl-L-Carnitine. Doctor's Best L-Carnitine Fumarate is in the form of L-Carnitine fumarate. Both products contain BIOSINT L-Carnitine, which is manufactured in Italy by the reputable company Sigma-Tau. Sigma-tau Health Science, Inc has the only FDA-approved pharmaceutical batch process system for consistent L-Carnitine quality, and has been manufacturing L-Carnitine derivatives for 30 years.

What is the country of origin for Doctor's Best products?

Doctor’s Best products are quality tested and manufactured in the United States using highly qualified cGMP manufacturers and raw material ingredients. Doctor’s Best sources raw materials from around the world and ingredients are subject to the intense testing and verification regardless of geography of origin.

Consult your healthcare provider before use if you are taking any prescription medications or if you have a medical condition.

Information

What is Doctor’s Best L-Carnitine Fumarate?

Doctor’s Best L-Carnitine Fumarate helps the body burn fat for energy and helps maintain a healthy heart and cardiovascular system. * L-Carnitine is a nutrient that promotes energy production in cells by transporting fatty acids into the mitochondrion, an intracellular structure that generates metabolic energy in the form of ATP. * In this role, L-carnitine helps the body efficiently metabolize fat. Fumarate is a naturally occurring compound in the body. Fumarate serves as an intermediate in the Krebs cycle, a key energy-producing process that takes place in the mitochondrion. Doctor’s Best Carnitine Fumarate is derived from pharmaceutical grade L-carnitine manufactured by a patented, FDA-approved process.

How does it work?

L-carnitine promotes energy production in cells by transporting fatty acids into the mitochondrion. Its primary function is to transfer long-chain fatty acids across the inner mitochondrial membrane. Fatty acid molecules are activated to coenzyme A (CoA) esters in the cytoplasm of the cell, and then esterified to L-carnitine. The combination of a fatty acid molecule and L-carnitine is called “acyl-carnitine.” Much of the body L-carnitine content is stored in the form of acyl-carnitine. The mitochondrion is the cell’s energy-generating furnace. Called an “organelle,” the mitochondrion is a self-contained structure inside the cell. Like all cellular structures, the mitochondrion is surrounded by a membrane. This membrane is an impenetrable barrier to acyl-CoA esters; passage across the membrane requires L-carnitine as a transporter. On the inside of the mitochondrial membrane, the acyl-CoA esters are made available to be metabolized through the process of beta oxidation. One of the key metabolic byproducts of this process is acetyl-CoA, also called “active acetate,” which enters the Krebs cycle (also known as the “citric acid cycle”) to supply fuel for production of ATP, the cell’s primary energy “currency.” L-Carnitine shuttles excess fatty acid residues out of the mitochondrion and in this role is essential for preventing toxic buildup of fatty acids inside the mitochondrion.

Supplemental Facts

FAQs

What is the difference between the various carnitine products that Doctor's Best offers?

Doctor's Best offers 2 different carnitine products: L-Carnitine Fumarate, and Acetyl-L-Carnitine.

L-Carnitine Fumarate is in the form of L-Carnitine fumarate

Both products contain BIOSINT™ L-Carnitine, which is manufactured in Italy by the reputable company Sigma-Tau. Sigma-tau® HealthScience, Inc has the only FDA-approved pharmaceutical batch process system for consistent L-Carnitine quality, and has been manufacturing L-Carnitine derivatives for more than 30 years.

What is the difference between the various carnitine products that Doctor's Best offers?

Doctor's Best offers 2 different carnitine products: L-Carnitine Fumarate, and Acetyl-L-Carnitine. Doctor's Best L-Carnitine Fumarate is in the form of L-Carnitine fumarate. Both products contain BIOSINT L-Carnitine, which is manufactured in Italy by the reputable company Sigma-Tau. Sigma-tau Health Science, Inc has the only FDA-approved pharmaceutical batch process system for consistent L-Carnitine quality, and has been manufacturing L-Carnitine derivatives for 30 years.

What is the country of origin for Doctor's Best products?

Doctor’s Best products are quality tested and manufactured in the United States using highly qualified cGMP manufacturers and raw material ingredients. Doctor’s Best sources raw materials from around the world and ingredients are subject to the intense testing and verification regardless of geography of origin.

Safety

Consult your healthcare provider before use if you are taking any prescription medications or if you have a medical condition.