Page 1 - Reviews - Source Naturals, TMG, 750 mg, 240 Tablets - iHerb

Customer Ratings & Reviews

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4.8
Based on 575 ratings
481
67
21
3
3
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What customers say
Customers generally find the TMG supplement to be of good quality and well-priced. Many users report improved energy, mood, and focus after taking it for a short period. The product is particularly appreciated for its convenience in tablet form, although some find the tablets large and difficult to swallow. Several customers use it to manage conditions related to methylation issues, such as MTHFR gene mutations, with positive results. Some experienced initial stomach discomfort but found that taking the supplement with food mitigated these effects. The brand is favored for its cost-effectiveness compared to other options on the market. However, a few users did not notice significant benefits or switched back to their previous brands due to personal preferences.
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iHerb customer
Posted on Jan 15, 2026
Switzerland
66
0
0
1
Verified purchase
I’m very satisfied with my order from iHerb. The product quality is excellent, exactly as described, and the packaging was secure and professional. Delivery was fast and reliable, everything arrived in perfect condition. I truly appreciate the wide selection of high-quality products and the smooth shopping experience. I will definitely continue ordering from iHerb and highly recommend it.
iHerb customer
Posted on Nov 7, 2025
Australia
64
0
0
78
Homocysteine reduction
Verified purchase
I take 3 g TMG per day, and my homocysteine have fallen by roughly a half since I started taking this supplement. This is superb, as high homocysteine levels are a key danger sign for cardiovascular disease and inflammation. The lower, the better. And TMG (betaine) has allowed me to achieve this excellent outcome.
Kaleb
Posted on Dec 25, 2024
United States
45
0
0
3
Good deal!
Verified purchase
These large capsules are easy to crush up and add into water, virtually no taste at all which helps. I bought these because they were on sell
iHerbLebanon
Silver
Posted on Dec 23, 2025
United States
295
18
0
23
good quality
Verified purchase
Trimethylglycine (TMG) support liver health and cardiovascular function good quality
ScholasticaSuprawee
Posted on Feb 13, 2026
Thailand
28
0
0
0
Verified purchase
Good to try. Worth the money. Might take some time.
iHerb customer
Posted on Dec 31, 2025
United Kingdom (UK)
68
0
1
4
TMG
Verified purchase
Source Naturals TMG has been a fantastic addition to my daily routine! I’ve noticed improved mental clarity since I started taking it. The tablets are easy to swallow and have no unpleasant taste. I appreciate the quality of this product. It’s a good way to support my methylation process!
iHerb customer
Posted on May 25, 2025
Netherlands
31
0
0
4
Source Naturals
Verified purchase
The following is stated: "TMG, also known as anhydrous betaine, is found in a variety of plant and animal sources and is used in the conversion of homocysteine to methionine. Maintaining normal homocysteine levels is important for the health of the cardiovascular system. TMG has been shown to protect the liver and raise S-adenosylmethionine (SAM) levels, in animal studies. SAM may help to promote a balanced emotional state."
iHerbCustomer
Silver
Posted on Apr 18, 2025
Singapore
101
0
0
28
Great for heart health
Verified purchase
Trimethylglycine (TMG), also known as betaine, is a compound that supports heart health, methylation, and athletic performance. Some studies suggest it helps lower homocysteine levels, potentially reducing cardiovascular risk. It is also used by athletes for muscle endurance, though findings are mixed. Generally safe, but high doses may cause digestive discomfort.Itake it for health and atheketic performance with good results. 750mg dosage is sufficient for most and capsile size is good also use a quality ingredient.
StAliA
Silver
Posted on Nov 30, 2024
Israel
198
0
0
80
Great Supplement for Overall Well-Being!
Verified purchase
I’ve been using Source Naturals TMG 750 mg for a while now, and I’m really happy with the results. The quality is excellent, and I love that the tablets are gentle on my stomach. I’ve noticed a significant improvement in my energy levels and overall well-being. The 240-tablet bottle is a great size, providing a long-lasting supply, making it very convenient and cost-effective. The composition is simple, with no added fillers, which is important to me as I have sensitive digestion. Overall, I would highly recommend this product for anyone looking to boost their health!
iHerb customer
Posted on Nov 19, 2024
Australia
11
0
0
1
source naturals TMG
Verified purchase
Since trying the ingredient Trimethylglycine I have gone from doing zero to thirty squats - and I'm seventy! I take from 1 to 3 tablets a day with no unpleasant effects. It truly does seem to benefit the muscles. More stamina. I like that I got the results that it was reputed to have. Quality product!