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Homocystrol TMG "Revised ( 90 vegetarian capsules) - Douglas Laboratories

Product code: HOMTMG-90-DLA

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Quick Overview

Homocystrol® + TMG is now revised to include activated forms of B vitamins, along with trimethylglycine (betaine) and choline needed for proper metabolism of homocysteine and the support of metabolic synthetic processes requiring methyl donors.
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Description Homocystrol TMG "Revised ( 90 vegetarian capsules) - Douglas Laboratories

Supplement Facts
Serving Size: 
 3 capsule
Servings Per Container:
 30 servings

 Amount Per Serving%Daily Value
Riboflavin  (as Riboflavin-5-Phosphate)50 mg2,941%
Vitamin B-6  (as Pyridoxal-5-Phosphate)35 mg2,500%
Folate  (as L-methylfolate, Metafolin800 mcg200%
Vitamin B-12 (methylcobalamin)1,000 mcg16,667%
Magnesium (as Magnesium Chelate)50 mg 13%
Trimethylglycine (Betaine)850mg  
Choline (as Choline Bitartrate)150 mg 

Other ingredients:

Hydroxypropyl methylcellulose (capsule), cellulose, vegetable stearate, and silica

†Daily Value not established.

Homocystrol™ + TMG Cardiovascular Health


Homocystrol™ + TMG, provided by Douglas Laboratories, contains significant amounts of activated B vitamins, trimethylglycine (betaine) and choline needed for proper metabolism of homocysteine, and the support of metabolic synthetic processes requiring methyl donors. Revised Formulation Homocystrol™ + TMG now provides bioavailable forms of B vitamins. Methylcobalamin, methylfolate, pyridoxal-5-phosphate, and riboflavin-5-phosphate are the forms most readily used by the body and do not require conversion once consumed.


Homocysteinemia, or elevated plasma homocysteine, is a major factor that can influence poor cardiovascular health. High plasma levels of homocysteine appear to have negative effects on the vasculature, impairing the functional abilities of endothelial and smooth muscle cells. Suboptimal intake of several B vitamins, renal failure, environment, diet, stress, and genetic defects in homocysteine metabolism can all contribute to abnormal homocysteine levels. Homocysteine is a sulfur containing amino acid that is created in the body from methionine, an essential amino acid derived solely from dietary intake. Methionine is metabolized into homocysteine via an intermediate, Sadenosylmethionine. Homocysteine can be metabolized to produce cysteine, a nonessential sulfur-containing amino acid, or it can be remethylated to methionine. Whether the body needs cysteine or methionine will dictate which path homocysteine metabolism will take. Production of cysteine from homocysteine requires two specific enzymes for which vitamin B-6 is an essential coenzyme. Without adequate vitamin B-6, homocysteine cannot be metabolized into cysteine. The body can also metabolize homocysteine by remethylating it to methionine. The primary route by which homocysteine is remethylated to methionine requires folate in the form of methyltetrahydrofolate as a methyl donor and vitamin B-12 (methylcobalamin) as a coenzyme. Methyltetrahydrofolate, or L-methylfolate, is synthesized in the body from dietary folic acid. However, L-methylfolate can be used directly by the body, without the need for folic acid conversion via the enzyme 5,10-methylenetetrahydrofolate reductase (MTHFR). In certain populations, the body’s ability to convert folic acid to 5-MTHF by use of this enzyme may be compromised due to genetic differences. B vitamins, in particular folate, methylcobalamin, and vitamin B-6 are necessary for the body to metabolize homocysteine. A deficiency or suboptimal levels of any of these essential vitamins may cause plasma homocysteine levels to rise. Dietary surveys and epidemiological studies indicate that suboptimal levels of folate, vitamin B-12, and vitamin B-6 are common in many population groups. Elderly individuals, smokers, alcoholics, and medications users, including estrogens and popular medications for cholesterol and blood glucose control, are at risk for subclinical deficiencies of one or more of these B vitamins. TMG, trimethylglycine, also known as betaine anhydrous, acts as a methyl donor in the methionine/homocysteine cycle. One route of homocysteine metabolism is by methylation to form methionine, using a methyl group from methylcobalamin or from trimethylglycine. Methionine is then converted to Sadenosylmethione (SAMe). Trimethylglycine is absorbed rapidly and has a high volume of distribution due to extensive distribution to tissues, including the kidneys and liver. When taken orally, trimethylglycine can support normal homocysteine levels.

 Improvement in plasma homocysteine may be seen within a week, and steady state could be reached within a month. Choline, also considered a B vitamin, can be oxidized to betaine which serves as a methyl donor to convert homocysteine to methionine. Dietary intake of choline might also support healthy homocysteine level. † The effect of dietary choline intake may be greatest on those with lower folate levels.

Recommended dosage

adults take 3 capsules daily

Observe the (recommended) daily dose. Keep out of reach of young children.

A varied and balanced diet and a healthy lifestyle are important. Dietary supplements are no substitute for a varied diet.

The text on this product page has not been reviewed by the EFSA. We take as much as possible the original manufacturer's product description and remove all texts that are not conform the European nutrition claim legislation.

Additional Information Homocystrol TMG "Revised ( 90 vegetarian capsules) - Douglas Laboratories

EAN Code8713959032993
Manufacturer Part Number201329-90EU
Original Product NameHomocystrol TMG 90 capsules Douglas Laboratories
Core Product NameHomocystrol TMG
Product CategoryAmino Acids
BrandDouglas Laboratories
Product TypeFood supplement
Weight (grams)500.0000
Package Quantity1
Package Size90
Type of unitsCapsules
Product Criteria100% Vegetarian, GMO Free
Does not containGluten, Salt, Starch, Yeast, Wheat, Corn, Milk, Soja, Artificial coloring, Artificial flavoring agents, Preservatives
Country of ManufactureUnited States
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