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Betaine Hydrochloride: A Deep Dive into Its Scientific and Practical Impact

Historical Development

Betaine Hydrochloride came out of the convergence of organic chemistry and nutrition science. Dating back to discoveries in the late 19th century, scientists first found betaine in sugar beets, which led to broader investigations into its structure and function. Researchers figured out that adding a hydrochloride group not only improved its shelf stability but also allowed the compound to play a crucial part in supplement formulations. As modern medicine started to look for alternatives to animal-derived digestive aids, betaine HCl found its place as a reliable option, especially as regulatory standards pushed manufacturers toward more defined, replicable ingredients. The supplement industry moved quickly to capitalize on its potential, but researchers never stopped testing its purity, safety, and performance.

Product Overview

Betaine Hydrochloride typically shows up as a white, crystalline powder that gives off a faint, acidic smell. Its value comes from acting as an acidifying agent and a methyl-group donor. Over-the-counter digestive support products often turn to betaine HCl to boost stomach acid, which helps folks who deal with low gastric acidity. Outside of supplements, this compound features in animal feed, healthcare products, and occasionally lab reagents. Because the supplement market likes consistency, manufacturers refine the production and keep a close eye on trace contaminants.

Physical and Chemical Properties

The compound’s full name, trimethylglycine hydrochloride, tells you plenty about its structure. A formula of C5H12ClNO2, a melting point near 226°C, and a solubility that gets it into water with ease. It doesn’t mix well with nonpolar solvents, so water-based applications remain the standard across food, feed, and pharmaceutical manufacturing. The powder clumps when exposed to humidity, forcing distributors to use moisture-proof containers. Its acidic reaction arises from the hydrochloride part, which helps it act as a gastric acid mimic.

Technical Specifications and Labeling

Supplements marked as betaine hydrochloride usually range from 500mg to 650mg per capsule, with purity levels reported above 98%. Pharmaceutical standards dive into the details: heavy metal analysis, microbial content checks, and clarity on active ingredient amounts. Product labels break down recommended dosages, daily value percentages, and storage guidelines. For bulk supply, labeling follows regional regulatory codes, citing lot number, production origin, and expiration dates so quality assurance teams can track and recall if needed.

Preparation Method

Modern manufacturing lines derive betaine from sugar beet processing using a multi-stage extraction, purification, and crystallization approach. Chemists introduce hydrochloric acid to pure betaine, steer the solution through evaporation, and encourage crystal formation under controlled cooling. Good manufacturing practices demand that process water and reagents hit food-grade quality, and every production batch gets routine checks to confirm proper conversion and absence of byproducts that could signal incomplete reaction or contamination.

Chemical Reactions and Modifications

Once chemists form betaine hydrochloride, the compound keeps its structure unless forced through harsh bases or driven through oxidation-reduction cycles. In specialized labs, modifications focus on analog synthesis for research into methylation processes—mainly because the methyl groups have major implications in biochemistry. The compound also gets attention for its role in forming complexes with pharmaceuticals, attempting to influence drug delivery rates or absorption profiles.

Synonyms and Product Names

Betaine Hydrochloride goes by names like betaine HCl, betaine monohydrochloride, or simply as a digestive aid in nutrition circles. Product code numbers in food and supplement catalogs give professionals another way to reference it, and some regions translate or rename it based on language or regulatory convention. Supplement shelves show combinations with digestive enzymes, often under proprietary blends for gastric support.

Safety and Operational Standards

Regulatory agencies set tight limits for purity, heavy metals, and contaminant levels because the compound heads directly into human use. The FDA, European Food Safety Authority, and similar bodies all keep close watch on manufacturing standards. Workers in production environments wear gloves, goggles, and dust masks because airborne particles irritate mucous membranes and skin. Food-grade batches require validation for absence of microbial contamination, and all shipments to supplement companies go through stability testing to confirm that shelf life matches the labeled expiration date. Clear training guides for storage and transfer procedures protect both people and product integrity all the way from factory to consumer.

Application Area

People with low stomach acid, or hypochlorhydria, turn to betaine HCl supplements hoping to make digestion easier and nutrient absorption more reliable. The animal feed industry uses the compound to help livestock metabolize nutrients more efficiently, improving health and sometimes boosting growth performance. Pharmacists and compounding professionals occasionally tap its properties for custom digestive aids. Food scientists give the compound a role in testing acid tolerance of probiotic strains. Biotechnology research keeps betaine handy as a stabilizer for certain enzyme reactions, driven by its methyl donor capacity.

Research and Development

Researchers keep digging into betaine HCl’s roles in metabolic health and methylation. Multiple clinical trials have examined its use in treating digestive complaints, though outcomes vary based on individuals’ underlying health status. Recent publications have investigated its impact on homocysteine metabolism and cardiovascular risk reduction, drawing from biochemical evidence that methyl-group metabolism affects vascular health. Laboratories design new dosage forms to increase absorption or reduce gastrointestinal irritation, and intellectual property filings show plenty of momentum for new combinations, especially with plant extracts and probiotics.

Toxicity Research

Human studies generally find betaine HCl safe at typical supplement doses, but higher intake increases risks of gastric irritation, heartburn, or—in cases of overuse—mucosal damage. Toxicological testing looks for allergic reactions, carcinogenic signals, and long-term organ impacts, especially for chronic or high-dose consumption. The European Food Safety Authority and US FDA both recommend keeping clear of unregulated “mega doses,” pointing to isolated cases of esophageal damage from misuse. Regulatory agencies ask manufacturers to keep strict quality control on labeling, batch specification, and usage warnings.

Future Prospects

As genomics and personalized nutrition move forward, betaine hydrochloride could gain a place in tailored supplement regimes for folks with specific metabolic or digestive quirks. Veterinarians and livestock producers might see refinements in animal feed protocols to improve yield with less environmental impact. The food industry could tap emerging research on gut health and methylation, launching new digestive products. Ongoing R&D should deliver better delivery systems, fewer side effects, and even broader applications in metabolic health, enzyme technology, and agriculture. Regulatory scrutiny isn’t going anywhere, so companies that invest in compliance and transparent science stand to lead future markets.




What is Betaine Hydrochloride used for?

What Betaine Hydrochloride Really Does

Betaine hydrochloride has picked up attention over the years as a supplement intended to boost stomach acid. People grab bottles of it on pharmacy shelves because so many deal with heartburn or indigestion and want to avoid prescription pills for stomach acid reduction. The pitch sometimes sounds simple: one capsule with a meal and you’ll feel like your digestion gets a helping hand. But there’s more to sorting out digestive problems than swallowing a quick fix, and there’s a reason doctors and dietitians bring up lots of caveats.

Why It Became Popular

Low stomach acid isn’t talked about as much as conditions like reflux, but it can cause real problems—think uncomfortable fullness, bloating, and trouble breaking down protein-rich foods. I’ve seen people in health food stores swear by betaine HCl after years of trying antacids that never made their digestion truly better. It’s true that some folks with hypothyroid issues or autoimmune conditions have trouble producing enough stomach acid. In their search for answers, the promise of a supplement can feel like hope. But there’s little benefit in trail-and-error guesses without a clear diagnosis.

What Science and Experts Actually Say

Supplement brands always look for eye-catching claims, but medical research on betaine hydrochloride is spotty and doesn’t offer broad solutions. Most large medical groups warn against using supplements to self-treat stomach acid troubles. A 2017 review in the Journal of the Academy of Nutrition and Dietetics points out that few controlled studies examine how supplemental HCl affects people with low acid. Most of the data comes from small trials, anecdotes, or outdated reports. Instead, established experts recommend proper evaluations like gastric pH monitoring to figure out the real source of symptoms. Imaging, blood panels for vitamin B12 deficiency, and breath tests for bacterial overgrowth give a much better roadmap than just guessing and popping a pill before pasta.

Dangers of Going It Alone

I’ve talked to people who start betaine HCl for mild heartburn, only to end up in the ER with burning pain because of underlying ulcers or gastritis. If you already take anti-inflammatory medicines, blood thinners, or have a sensitive stomach, the extra acid from betaine HCl can do harm. The FDA said in 1993 that betaine HCl has not been proven effective, yet many online stores pitch it without a second thought. Supplements in the US aren’t required to meet the same safety checks as real medications. That’s why some supplements can have inconsistent dosages or impurities—an unsettling thought if you’re already struggling with digestive health.

Practical Advice and Safer Alternatives

Before reaching for supplements, a registered dietitian or gastroenterologist can help with tests for stomach acid levels, underlying infections, or food intolerances. Many people find their symptoms improve when they slow down meals, chew thoroughly, or avoid eating late at night. For mild low-acid symptoms, focusing on protein portion size and adding naturally acidic foods, like vinegar or lemon, to meals is often safer. Regular checkups mean you won’t miss conditions that look like indigestion but turn out to be ulcers, reflux disease, or even more serious digestive problems. Stomach acid is easy to misunderstand, and it pays off to get careful answers instead of relying on supplements alone. Ask a doctor or dietitian before adding betaine hydrochloride or any over-the-counter product—getting solid advice always beats rolling the dice with your gut.

How do you take Betaine Hydrochloride?

Understanding Betaine Hydrochloride

Betaine hydrochloride, sometimes just called betaine HCl, shows up in health stores as a digestive support supplement. Many people look for it after learning that their stomach doesn’t always make enough acid. Stomach acid helps break down protein and absorb vitamins, especially as folks get older or try antacid medications for ongoing heartburn. I’ve met people who feel constant bloating after meals and wonder if low stomach acid plays a role. Betaine hydrochloride has been suggested as a way to give the stomach what it struggles to make on its own.

How People Use Betaine Hydrochloride

Most people find betaine HCl in pill or capsule form. Swallow the supplement with the first bite of a high-protein meal. Tablets never get chewed or crushed, since they’re designed to reach the stomach and dissolve where the acid is needed. Adding the supplement on an empty stomach or with light snacks brings discomfort. A strong protein meal—think meat, eggs, beans, or tofu—pairs best with betaine HCl. Without protein, taking this kind of supplement feels pointless and sometimes leads to a strange burning feeling. That’s the body signaling it missed the mark.

For anyone with questions about dose, most bottles suggest starting at a lower dose, maybe around 400–650 milligrams per meal, and watching for a warm, gentle feeling in the stomach. No burning, no pain—just mild warmth if the body benefits from the acid. People often try one capsule first, then move up in small steps until a meal feels more comfortable or lighter. I always recommend talking to a healthcare provider because not everyone should try this supplement. People taking anti-inflammatory painkillers, or suffering from ulcers, risk harm if they add more acid to their gut. Blood test results showing chronic acid reflux or damage should lead to a conversation with a physician, not a supplement experiment.

Why It Matters

Stomach acid plays a major role in breaking down food, protecting against certain infections, and activating B vitamins. If acid levels dip too low—something that often happens with age, or after major stress—digestion lags. Meals start to feel heavy, gas builds, and key nutrients go unused. Over time, poor stomach acid can set the stage for bigger health troubles, like vitamin B12 deficiency or poor iron absorption. Betaine hydrochloride aims to fill that gap for people whose stomachs struggle, but only when used smartly and with trusted guidance.

Many supplement stores promote betaine HCl as a fix-all for any digestive trouble, but facts paint a more complex picture. Not everyone needs more stomach acid. Many symptoms come from totally different causes—food intolerances, infections, and even anxiety. Personal experience tells me self-diagnosing often leads to disappointment and wasted money.

Smart Practices and Cautions

Consulting with a healthcare provider before jumping in makes the most sense. Doctors may recommend a simple acid test or ask questions that dig deeper. Sometimes improving stomach acid starts with basic habits: chewing thoroughly, not drinking loads of fluid at mealtimes, and eating mindfully. Betaine hydrochloride never replaces a balanced diet or medical advice. For some, it eases discomfort and supports nutrient absorption. For others, it does very little or causes side effects.

Every supplement on the shelf packs risks and rewards. People deserve the facts before they buy, and health always comes first. Use care with betaine hydrochloride, tune in to what your body says, and talk things over with someone trained to help.

Are there any side effects of Betaine Hydrochloride?

Walking Through My Experience

You don’t need a white coat to bump into something like Betaine Hydrochloride. I discovered it through a curious friend who struggled with heartburn and bloating after big meals. This supplement pops up in health shops and on the internet as a fix for low stomach acid, doors wide open for folks hoping to ease digestion. There’s a lot riding on word-of-mouth—someone tries it, tells others, and suddenly everyone seems to be giving it a go. Still, digestion isn’t something to mess around with without some real talk about risks.

Are There Side Effects?

Betaine Hydrochloride looks like a shortcut to better stomach health, especially for those with a diagnosis of low stomach acid. Swallowing a pill sounds easy, but no free lunch here; side effects exist. Stomach pain cropped up for my friend right after she took a couple of capsules on an empty stomach. Sometimes, supplements like this burn their way down or leave a sense of heaviness. A Harvard Medical School review flagged up cases where Betaine Hydrochloride triggered heartburn and worsened gastritis. Even just thinking about hydrochloric acid mixing with a sensitive gut is enough to make anyone pay attention.

Swallowing more acid than the body produces can backfire. Stomach ulcers become more likely if a lingering sore meets this supplement. A study in Clinical and Translational Gastroenterology laid out clear warnings, especially for anyone with a history of ulcers, Barrett’s esophagus, or regular acid reflux. I’ve talked with dietitians who pictured this as “throwing oil on a flame” for those already dealing with irritation. If you take anti-inflammatory drugs or steroids for a different problem, this can set you up for even more discomfort or bleeding—never worth the gamble.

Looking for Guidance

A supplement like this should never replace medical advice. I remember doctors at my community clinic shaking their heads at over-the-counter acid supplements since they often miss the point. Low stomach acid happens, but the real fix should start with a doctor running tests. One physician walked me through how too much Betaine Hydrochloride skews lab results, making it tough to tell what’s actually going wrong inside. For folks with anemia or nutrient deficiencies, the urge to try anything can cloud judgment, but adding excess acid may worsen GI bleeding or mask a bigger problem.

Weighing Options for Safety

People in my neighborhood are quick to trade tips, sharing what “worked” for them. But stories without medical backing can lead others down risky roads. Small studies have suggested Betaine Hydrochloride might help with protein digestion in those with true hypochlorhydria, but no major research backs its safety long-term. The U.S. Food and Drug Administration doesn’t approve it for any disease. Companies sell it as a dietary aid, without full checks or balances, adding uncertainty about quality or dose.

Safer paths exist. Always loop in a healthcare provider for any change in supplements, especially with gut or heart issues. For some, dietary tweaks or prescription options tackle stomach struggles without inviting new problems. Transparency, listening to qualified experts, and trusting reliable sources protect both health and wallets.

Who should not take Betaine Hydrochloride?

Understanding Betaine HCl

Betaine Hydrochloride shows up on a lot of supplement lists with talks about better digestion and managing low stomach acid. It often gets linked to relief from bloating and discomfort after eating. But not all health supplements suit everyone, and betaine HCl brings its own set of risks. Missing that can mean facing more trouble than you signed up for.

People with Stomach Ulcers or Gastrointestinal Issues

Anyone with a current or suspected stomach ulcer, gastritis, or inflammation in their digestive tract should steer clear of betaine HCl. I remember a relative trying it on a friend’s recommendation, hoping for relief from her indigestion. What followed was days of increased burning and pain. Betaine HCl boosts hydrochloric acid in the stomach. With ulcers or inflammation, that extra acid can make things worse, burning already sensitive tissue and possibly leading to serious complications.

Those Taking Anti-Inflammatory Drugs or Steroids

People using nonsteroidal anti-inflammatory drugs (NSAIDs)—things like ibuprofen—or on corticosteroids face higher risk for stomach ulcers and irritation. Taking betaine HCl alongside these drugs pushes that risk even higher. Studies have shown that combining acid-boosting agents with NSAIDs increases chances of bleeding and erosive damage in the gut. I’ve seen folks brush this off, but hospital records don’t lie: this combo can land you in the emergency room.

Prenatal Women and Nursing Mothers

Pregnant women, or those who are breastfeeding, often want to optimize nutrition and health for both themselves and their babies. But there’s little reliable research on the safety of betaine HCl during pregnancy or lactation. The changes that pregnancy brings can affect how stomach acid works, and adding more acid in the mix hasn’t been shown to be safe. In these situations, it makes sense to avoid extra risks.

Children and Teens

Digestive systems in children aren’t just smaller versions of adult stomachs—they work differently and respond differently to supplements. Reliable guidance on the safe use of betaine HCl in people under 18 just isn’t available. Pediatricians generally recommend staying away from hydrochloric acid supplements unless supervision is tight and there’s a real need.

People with Allergies to Ingredients

Betaine HCl supplements usually come with “other ingredients” on the label. Sometimes those include fillers, binders, or even allergens like gluten or soy. Allergic reactions can sneak up fast and don’t always match what you’d expect—skin rashes, trouble breathing, sometimes severe digestive problems. Always check the supplement facts, but if you aren’t sure, don’t gamble.

Possible Solutions and Safer Choices

For better stomach acid production, changes in diet—eating smaller meals and chewing food thoroughly—helps many people more than supplements. If acid levels are truly low, working with a gastroenterologist for proper testing and management makes more sense than guessing with supplements. Digestive issues have dozens of causes and only a thorough workup sorts fact from fiction.

Final Thoughts

Betaine HCl holds out promise for some, but it’s not a universal fix. Gut discomfort needs careful handling, especially for those with preexisting issues or mixing medications. Listening to your own body and consulting a doctor, instead of reaching for any quick pill, keeps you safer—and often healthier in the long run.

Can Betaine Hydrochloride help with digestion?

Looking Closer at Stomach Acidity

Sometimes a stomach just won’t play ball. Food sits heavy, heartburn follows a rich meal, or bloating drags down the afternoon. For years, the usual story has blamed too much acid. Now there’s talk about too little. This thinking draws attention to betaine hydrochloride, a supplement that’s been popping up on pharmacy shelves and internet wellness blogs.

Why This Supplement Raises Eyebrows

Betaine hydrochloride brings an acid punch. The logic: people with low stomach acid don’t break down protein well and may notice more indigestion. Drugs like proton pump inhibitors make things easy for reflux, but over time, they blunt the natural acid in the stomach. As someone who once knocked back boxes of TUMS after pizza, I’ve looked at both sides. One test from Johns Hopkins even showed up to 40% of people with reflux problems have normal or low acid—less than expected. If you don’t break down your food’s protein or minerals, the gut gets cranky, and nutrition takes a hit.

Betaine hydrochloride promises a shortcut: boost the stomach’s acid for better breakdown. Some naturopathic doctors swear by it for sluggish digestion and a heavy, full feeling after protein-heavy meals. There’s a basic science to the idea. Your stomach wants a pH under 3 to trigger pepsin, the enzyme that tackles meat and eggs. If you dilute acid, pepsin takes a vacation, and food ferments. Betaine hydrochloride seems like a tool to help that process.

What the Science Actually Says

This all sounds neat, but hard evidence runs thin. Most of the research sits in small pilot studies or anecdotal stories from clinics. One study in 2017 checked how betaine hydrochloride changed the pH for people with hypochlorhydria (a fancy word for low stomach acid). The supplement actually lowered the pH for a bit, but no strong proof shows better digestion or fewer symptoms. Some people find heartburn vanishes, others get worse. The FDA pulled approval for prescription use long ago, since bigger trials didn’t back the claims.

Gut health gets complicated. Sometimes underlying causes include infections, medications, or long-term stress. Low stomach acid shows up in older adults, in folks who take acid-blocking drugs, and sometimes in people with autoimmune issues. Jumping on a supplement may cover up something deeper—an infection like H. pylori or chronic gastritis, for instance.

Possible Risks and Real-World Use

I remember a patient who started betaine capsules after reading about them on a forum. She got relief until she ran into sudden heartburn. Turns out, she had an ulcer that flared up with more acid. Supplements like betaine hydrochloride cause trouble if the gut lining’s damaged. It’s no accident every bottle has a warning about existing ulcers or gastritis.

Doctors who use these supplements often start with low doses and check for side effects. They usually stress starting slow and monitoring symptoms, rather than guessing and gulping pills. Betaine hydrochloride doesn’t fit as a solution for everyone—especially not people who pop ibuprofen, have reflux, or a weak spot in their stomach lining.

Where To Go From Here

Figuring out digestion problems calls for a proper medical checkup, not just a new pill. Some folks will need more acid, but others need less. A simple test like the Heidelberg pH capsule or a gastric pH strip gives more clues. Before reaching for betaine hydrochloride, talk with a doctor, especially if the gut’s already troubled. Good digestion doesn’t always come in a bottle, even if advertisements spark hope.

Betaine Hydrochloride
Names
Preferred IUPAC name 2-(Trimethylazaniumyl)acetate;chloride
Other names Hydrochloride de Betaine
betaine HCl
betaine monohydrochloride
trimethylglycine hydrochloride
glycine betaine hydrochloride
Pronunciation /ˈbiː.teɪ.iːn ˌhaɪ.drəˈklɔː.raɪd/
Preferred IUPAC name 2-(Trimethylazaniumyl)acetate hydrochloride
Other names Betainium chloride
Betaine HCl
Trimethylglycine hydrochloride
Pronunciation /ˈbiː.teɪ.iːn ˌhaɪ.drəˈklɔː.raɪd/
Identifiers
CAS Number 590-46-5
Beilstein Reference 3584975
ChEBI CHEBI:34785
ChEMBL CHEMBL1556
ChemSpider 15404
DrugBank DB06744
ECHA InfoCard 03b629a4-d140-4198-b42c-7d5c6adf1622
EC Number 200-306-6
Gmelin Reference 82216
KEGG C01769
MeSH D001660
PubChem CID 234656
RTECS number DJ1986500
UNII 6DH1W9VH8Q
UN number UN1759
CAS Number 590-46-5
Beilstein Reference 1711830
ChEBI CHEBI:50462
ChEMBL CHEMBL1626
ChemSpider 14947
DrugBank DB06744
ECHA InfoCard 100.015.139
EC Number 200-306-6
Gmelin Reference 74077
KEGG C01013
MeSH D001677
PubChem CID 6579
RTECS number DS1750000
UNII 8C2976SZV8
UN number UN2966
Properties
Chemical formula C5H12ClNO2
Molar mass 153.61 g/mol
Appearance White to yellowish crystalline powder
Odor Odorless
Density 0.97 g/cm³
Solubility in water very soluble
log P -1.3
Acidity (pKa) 1.83
Basicity (pKb) pKb: 3.6
Magnetic susceptibility (χ) -7.0e-6 cm³/mol
Refractive index (nD) 1.504
Viscosity Viscous liquid
Dipole moment 4.02 D
Chemical formula C5H12ClNO2
Molar mass 155.62 g/mol
Appearance White to yellowish crystalline powder
Odor Odorless
Density 0.8 g/cm³
Solubility in water Very soluble in water
log P -1.2
Acidity (pKa) 0.23
Basicity (pKb) -1.8
Magnetic susceptibility (χ) -6.1×10^-6 cm³/mol
Refractive index (nD) 1.504
Viscosity Viscous liquid
Dipole moment 9.50 D
Thermochemistry
Std molar entropy (S⦵298) 190.5 J·mol⁻¹·K⁻¹
Std molar entropy (S⦵298) 303.8 J·mol⁻¹·K⁻¹
Pharmacology
ATC code A16AA06
ATC code A16AA06
Hazards
Main hazards May cause respiratory and eye irritation. Harmful if swallowed.
GHS labelling GHS02, GHS07
Pictograms GHS05,GHS07
Signal word Warning
Hazard statements H302: Harmful if swallowed.
Precautionary statements P264, P270, P301+P312, P330, P501
Flash point No flash point detected.
Autoignition temperature > 390 °C (734 °F; 663 K)
Lethal dose or concentration LD50 (oral, rat): 6500 mg/kg
LD50 (median dose) LD50 (median dose) of Betaine Hydrochloride: 5700 mg/kg (oral, rat)
NIOSH No evidence of NIOSH assignment
PEL (Permissible) Not established
REL (Recommended) 500 mg
Main hazards Harmful if swallowed. Causes serious eye irritation. May cause respiratory irritation.
GHS labelling GHS07, GHS05
Pictograms GHS05,GHS07
Signal word Danger
Hazard statements Harmful if swallowed. Causes serious eye irritation.
Precautionary statements Precautionary statements: "P264, P270, P305+P351+P338, P337+P313
NFPA 704 (fire diamond) 3-1-0
Flash point > 227.5 °C
Autoignition temperature > 400°C
Lethal dose or concentration LD50 (oral, rat): 5,000 mg/kg
LD50 (median dose) LD50 (median dose) of Betaine Hydrochloride: 6640 mg/kg (oral, rat)
NIOSH BIC10
PEL (Permissible) PEL: Not established
REL (Recommended) 6.4 mg/kg bw
IDLH (Immediate danger) Not established
Related compounds
Related compounds Trimethylglycine
Betaine aldehyde
Choline
Dimethylglycine
Glycine
Carnitine
L-carnitine
Betaine citrate
Related compounds Betaine
Dimethylglycine
Choline
Trimethylglycine
Proline
Glycine
Acetyl-L-carnitine