Healthy aging tips: what does research prove about NMN, TMG, and GlyNAC?

Healthy aging tips summarized

The best healthy aging tips therefore combine a strong lifestyle with targeted, transparent supplement choices. Do not automatically use everything at once, but look at which ingredient, form, and amount suit your goal and personal situation.

What does scientifically proven mean?

A supplement is not fully “proven” just because one study shows a favorable result. The strength of evidence depends, among other things, on the number of participants, the duration of the study, the dosage, the control group, and the measured outcomes.

Furthermore, there is an important difference between:

• a substance involved in a biological process;
• a change in a blood value or biomarker;
• a noticeable improvement in functioning;
• preventing or treating a disease;
• extending human lifespan.

For NMN, for example, an increase in NAD+ levels has been found in human studies. For TMG, there is an authorized European health claim regarding homocysteine metabolism. For GlyNAC, changes in glutathione and various functional outcomes have been investigated.

None of these findings prove that a supplement stops human aging. A reliable page therefore mentions both the positive research results and the limitations.

The proven foundation of healthy aging

Evidence-based healthy aging tips do not start with a capsule, but with daily habits.

The World Health Organization describes healthy aging as maintaining the functional abilities that enable people to lead the lives they value. A balanced diet, regular physical activity, and not smoking contribute to the maintenance of physical and mental capacity.

View the current explanation from the World Health Organization on healthy aging.

1. Get enough exercise every week

For adults, the WHO recommends at least 150 to 300 minutes of moderate-intensity exercise per week, or 75 to 150 minutes of vigorous-intensity exercise. In addition, at least two weekly sessions of muscle-strengthening activities are recommended.

For older adults, extra attention to strength and balance is important. View the WHO guidelines for physical activity.

2. Maintain muscle strength

Muscle strength is important for climbing stairs, carrying groceries, standing up, and remaining independent. Strength training, sufficient daily movement, and an appropriate diet support the maintenance of muscles.

3. Choose nutritious products

Vegetables, fruit, whole grains, legumes, nuts, and appropriate protein sources form a good foundation. As energy needs decrease, the nutritional value per meal becomes more important.

4. Take sleep seriously

A regular sleep rhythm supports concentration, mood, and daily functioning. Supplements cannot compensate for structural sleep deprivation.

5. Maintain social connection

Contact with family, friends, colleagues, associations, or volunteer organizations contributes to purpose and well-being. Healthy aging therefore has not only a physical but also a social and mental component.

Once this foundation is in place, you can assess whether a specific supplement forms a logical addition.

What has been demonstrated for NMN?

NMN stands for nicotinamide mononucleotide and is a precursor that the body can use in the formation of NAD+.

NAD+ is a coenzyme involved in reactions in energy metabolism. It also serves as a substrate for various enzymes involved in, among other things, gene regulation and DNA-related processes.

Human research on NMN and NAD+

In a randomized, double-blind, and placebo-controlled study, thirty healthy participants received 250 mg of NMN or a placebo daily for twelve weeks. In the NMN group, NAD+ levels in whole blood increased significantly. No clear abnormalities or serious side effects were reported in this short-term study.

View the original study via PubMed: oral NMN and NAD+ levels in healthy adults.

Another randomized study tested a higher daily amount in healthy adults for four weeks and reported no changes outside of normal physiological variation in the safety measurements investigated.

View this study via PubMed: short-term safety of NMN.

What is not proven by this?

These studies do not demonstrate that NMN:

• extends human lifespan;
• stops aging;
• prevents age-related diseases;
• gives more energy to every user;
• can replace medical treatment.

The accurate conclusion is that oral NMN supplementation in short-term human studies can increase NAD+ levels in the blood. The long-term clinical significance needs to be further investigated.

Buying NMN: capsules or powder?

The right form depends primarily on ease of use and the desired flexibility.

• NMN capsules 120 × 250 mg – for a fixed amount per capsule and a large package.
• NMN capsules 60 × 250 mg – for a compact package and fixed capsule amount.
• NMN powder 30 grams – for flexible measuring in powder form.
• NMN powder 15 grams – a smaller powder package.
• NMN powder and capsules bundle – combines flexible dosing at home with capsules for on the go.

First read the detailed explanation about NMN, NAD+, and human research.

What has been demonstrated for TMG?

TMG stands for trimethylglycine and is also called betaine. Betaine can donate a methyl group within the BHMT pathway during the conversion of homocysteine to methionine.

Authorized European health claim

There is an official European health claim for betaine: betaine contributes to normal homocysteine metabolism.

This claim may only be used for a product containing at least 500 mg of betaine per quantified portion. The consumer must be informed that the beneficial effect is obtained with a daily intake of 1.5 grams of betaine.

In addition, the claim must state that a daily intake of more than 4 grams of betaine can significantly increase blood cholesterol levels.

View the official conditions in Regulation (EU) No 432/2012 via EUR-Lex.

Human research on homocysteine

In a randomized study, healthy adults received 1.5, 3, or 6 grams of betaine daily, or a placebo, for six weeks. Compared to placebo, fasting homocysteine levels were approximately 12%, 15%, and 20% lower, respectively.

This research supports the relationship between betaine and homocysteine metabolism. It does not prove that TMG automatically prevents cardiovascular disease or extends lifespan.

View the study via PubMed: betaine and plasma homocysteine.

Is TMG necessary with NMN?

TMG is regularly used alongside NMN because betaine is a methyl group donor. However, there is no convincing clinical evidence that every NMN user automatically needs extra TMG.

Therefore, use TMG because of its own composition and evidence, and not based on the assumption that it is mandatory with NMN.

View TMG capsules 60 × 500 mg from Every Day Better.

Do you want to combine NMN and TMG practically? Then view the NMN and TMG bundle with 60 NMN and 60 TMG capsules.

Also read more about TMG and methylation and about the TMG dosage.

What has been demonstrated for GlyNAC?

GlyNAC is a combination of glycine and N-acetylcysteine, abbreviated as NAC.

Glutathione consists of the amino acids glycine, cysteine, and glutamate. NAC can be used in the body as a source of cysteine. Thus, GlyNAC provides two amino acids involved in the body’s own formation of glutathione.

Positive research in older adults

In a small randomized study, 24 older adults were divided between GlyNAC and placebo. After sixteen weeks, the researchers reported improvements in, among other things, glutathione deficiency, oxidative stress, certain mitochondrial measurements, and components of physical functioning.

View the study via PubMed: randomized GlyNAC study in older adults.

Why does caution remain necessary?

Another randomized study investigated three amounts of GlyNAC in 114 healthy older adults for two weeks. GlyNAC was well tolerated, but primary glutathione outcomes did not improve significantly in the entire study group. In a post-hoc analysis, a possible effect was found in participants with a higher oxidative load and lower baseline glutathione values.

View this study via PubMed: GlyNAC, glutathione status, and oxidative damage.

The correct conclusion is therefore that there are human indications of possible effects of GlyNAC, but the results are not yet fully consistent. Larger and longer independent studies are needed.

View GlyNAC capsules 60 × 600 mg from Every Day Better.

First read more about GlyNAC, glycine, NAC, and glutathione.

Comparing NMN, TMG, and GlyNAC

These supplements are not interchangeable. They contain different substances and are investigated in relation to different processes.

This comparison is one of the most important healthy aging tips: do not choose based on general words like “longevity” or “anti-aging,” but based on the individual ingredient, the available research, and your own situation.

Can you combine NMN, TMG, and GlyNAC?

NMN, TMG, and GlyNAC can be part of the same supplement routine, but the full combination has not been proven as an anti-aging treatment.

As far as available research shows, there are no large long-term placebo-controlled studies in which these three supplements have been investigated together for health, functioning, or lifespan.

When used in combination, you should pay attention to:

• the total daily amount of each ingredient;
• the recommended amount on the label;
• any overlapping ingredients;
• possible interactions with medications;
• existing medical conditions;
• the reason why you are using each supplement.

Preferably, do not start with multiple new products on the same day. When you add one product at a time, you can better assess how you react to it.

Which supplement fits your routine?

Choose NMN when your interest lies in NAD+

NMN is the most logical choice when you are specifically looking for an NAD+ precursor and value an ingredient that has been shown in short-term human research to increase NAD+ levels in the blood.

Choose TMG when your interest lies in betaine and homocysteine

Of the three, TMG has the clearest authorized European health claim. Always check the amount per serving and the mandatory information associated with the claim.

Choose GlyNAC when you want to combine glycine and NAC

GlyNAC combines two amino acids involved in the body’s own formation of glutathione. The human evidence is interesting but still less consistent than with the direct NAD+ increase from NMN or the homocysteine results with betaine.

Choose a bundle for practical use

Do you know you want to use NMN and TMG alongside each other? Then the NMN and TMG bundle is more practical than two separate orders.

Do you want to flexibly measure NMN powder at home and use capsules on the go? Then view the NMN powder and capsules bundle.

Comparing Every Day Better products for healthy aging

Commercial healthy aging tips should include transparency. Therefore, compare not only the price but also the form, amount per capsule, total content, and ease of use.

View all supplements in the Every Day Better shop.

What should you look for regarding the quality of supplements?

A good choice starts with verifiable product information. For NMN, TMG, and GlyNAC, pay attention to:

• the full name of the ingredient;
• the amount per capsule and per recommended daily dose;
• the total content of the package;
• the ingredients and excipients used;
• batch number and expiration date;
• storage instructions;
• the identity of the responsible company;
• available information on quality controls;
• realistic communication without unproven medical claims.

With NMN, it is important that identity and purity are verifiable. Therefore, also view the page on NMN certificates and quality control.

With GlyNAC, it must be clear that the product contains both glycine and NAC. With TMG, it must be clear that it is trimethylglycine or betaine and not betaine HCl.

Safe use and dosage

A research dosage is not automatically a personal recommendation. Studies on NMN, TMG, and GlyNAC use varying amounts, target groups, and study durations.

Therefore, use the following principles:

• follow the recommended daily amount on the product label;
• do not exceed this amount without professional guidance;
• check if other supplements contain the same ingredients;
• do not start multiple new products at once unnecessarily;
• stop in case of serious or persistent unwanted complaints;
• discuss long-term or combined use with a physician or pharmacist if in doubt.

Consult a physician or pharmacist beforehand if you are taking medication, are pregnant, breastfeeding, have a liver or kidney condition, have high cholesterol, or are under medical treatment.

Frequently asked questions about healthy aging tips and supplements

Below we answer the most important questions about healthy aging tips, NMN, TMG, GlyNAC, and choosing an appropriate Every Day Better product.

Which supplements are often mentioned in connection with healthy aging?

NMN, TMG, and GlyNAC are often mentioned because they are related to NAD+, homocysteine metabolism, and the amino acids involved in glutathione formation, respectively.

Is NMN proven to slow down aging?

No. In humans, short-term studies have shown that NMN can increase NAD+ levels in the blood. It has not been proven that NMN extends human lifespan or stops aging.

What is officially permitted for TMG?

Under established European conditions, it may be stated that betaine contributes to normal homocysteine metabolism.

Is 500 mg of TMG sufficient for the European claim?

A quantified portion must contain at least 500 mg of betaine. For the beneficial effect mentioned within the claim, the consumer must be informed that this is obtained with a daily intake of 1.5 grams of betaine.

Has GlyNAC been scientifically researched?

Yes. Randomized human trials have been conducted. One small study reported several improvements, while a larger short-term study did not confirm the primary glutathione outcomes for the entire study group.

Can you use NMN, TMG, and GlyNAC at the same time?

The products can be part of the same routine, but the full combination has not been extensively researched in large, long-term clinical trials. Check the total amounts and consult a physician or pharmacist if you are taking medication or have health problems.

Which form of NMN is most convenient?

Capsules provide a fixed amount and are easy to use on the go. Powder offers more flexibility in measuring. The best form therefore depends primarily on your personal preference.

What is the difference between TMG and betaine HCl?

TMG typically refers to trimethylglycine or anhydrous betaine. Betaine HCl also contains hydrochloric acid and is a different product.

Which Every Day Better product should I choose?

Choose NMN when you are specifically looking for an NAD+ precursor, TMG when you want to use betaine, and GlyNAC when you want to combine glycine and NAC in one product. Always look at the product composition and recommended amount.

Do supplements replace a healthy lifestyle?

No. Regular exercise, nutritious food, sufficient sleep, not smoking, and social connection remain the most important foundation for healthy aging.

Conclusion: evidence-based choices for healthy aging tips

The most important healthy aging tips combine lifestyle, realistic expectations, and transparent supplement choices. According to short-term human research, NMN can increase NAD+ levels in the blood. For TMG, there is an official European claim regarding normal homocysteine metabolism. GlyNAC provides glycine and NAC and is being investigated in human studies, but the results are not yet fully consistent.

Therefore, do not use supplements just because they are presented as a miracle cure. Choose a product because the composition is clear, the use fits your goal, and you understand what has and has not been demonstrated.

View NMN, TMG, GlyNAC, and the available bundles from Every Day Better.

Scientific and official sources

1. World Health Organization. Ageing and health.
   View the WHO source.
2. World Health Organization. Physical activity.
   View the WHO guidelines.
3. Okabe K. et al. Oral Administration of Nicotinamide Mononucleotide Is Safe and Efficiently Increases Blood Nicotinamide Adenine Dinucleotide Levels in Healthy Subjects.
   View via PubMed.
4. Fukamizu Y. et al. Safety evaluation of β-nicotinamide mononucleotide oral administration in healthy adult men and women.
   View via PubMed.
5. European Commission. Regulation (EU) No 432/2012: authorized health claim for betaine.
   View via EUR-Lex.
6. Olthof M.R. et al. Low dose betaine supplementation leads to immediate and long term lowering of plasma homocysteine in healthy men and women.
   View via PubMed.
7. Kumar P. et al. Supplementing Glycine and N-Acetylcysteine in Older Adults: A Randomized Clinical Trial.
   View via PubMed.
8. Lizzo G. et al. A Randomized Controlled Clinical Trial in Healthy Older Adults to Determine Efficacy of Glycine and N-Acetylcysteine Supplementation.
   View via PubMed.