SAMe How to Slow Down Your Age Clock

The "lubricant" for the clock is SAMe (S-adenosylmethionine).

Have you ever encountered such a situation: two people of the same age, one of whom looks energetic and has tight skin, while the other appears tired and aged, and is in a declining state?

Apart from genes and lifestyle, scientists have discovered a deeper reason - the speed at which the "methylation clock" in the body ticks may determine whether you look older or younger than your actual age.

Let's first talk about what exactly this "methylation clock" is.

Perhaps you have heard of the term "epigenetics". It sounds very sophisticated, but in fact, it's quite simple.

DNA methylation can be understood as "chemical notes" attached to genes - when these notes are attached, the genes are "silenced".

The sticky note is torn off, and the genes "start working".

When people are young, they keep their doorknobs and switches in good order, turning them on and off as needed.

As one gets older, they tend to throw away most of the post-it notes, but in some cases, they end up sticking them on more places than necessary.

The result is that "what should be turned off is not turned off (inflammation, genes related to aging are improperly activated), and what should be turned on is wrongly turned off (repair, metabolic genes fail to function properly)", and the body thus appears aged.

This is what is known as the "epigenetic clock" - by measuring the methylation status at specific locations on the DNA, scientists can calculate a person's "biological age", and this figure may differ by several decades from the age indicated on your ID card.

The bad news is that research has found that around the age of 35, the methylation status in the blood begins to undergo significant changes, and the degree of disorder starts to increase - this is the molecular-level reason why many people feel that "after 35, their bodies suddenly stop functioning properly".

Moreover, women in general are more deficient than men because the female body's estrogen is metabolized and excreted, requiring more methyl groups.

Of course, at 35 years old, it might just be a feeling.

The body won't have much trouble due to this yet. But by the time one reaches 50, the body will be much more sensitive to the "insufficient methyl donors", and the nutritional gap will be magnified into epigenetic damage at this point.

The good news is that this clock doesn't just keep ticking upwards; nutrition, lifestyle, and specific interventions can all slow down the clock.

I often hear about some anti-aging experts (such as Bryan Johnson), who perform certain actions and then their actual biological age decreases.

This mostly refers to the fact that this clock has slowed down.

One of the core goals of anti-aging is to slow down and stabilize this methylation clock.

Apart from other comprehensive anti-aging interventions, of course, an adequate supply of [methyl] is indispensable.

SAMe - Courier Who "Attaches Methyl Capsules" for You

OK, now that we know methylation is important, who will do the "applying the cap" job? The answer is SAMe.

SAMe is the most crucial "methyl courier" in your body.

It obtains the "methyl" package from the essential amino acid methionine in the food and the energy molecule ATP, and then delivers it to the desired locations - such as DNA, proteins, hormones, neurotransmitters, and so on.

After supplying the methyl group, SAMe will transform into SAH (a waste product), and then further convert into the dreaded Hcy (homocysteine).

The body also knows that SAH and Hcy are not good substances, so it will take two paths to eliminate them.

One is B9, B12, and B6, and the other is choline, betaine, and zinc.

However, if the recycling is not done in time, the ratio of SAMe/SAH will decrease, which will greatly affect the efficiency of SAMe in delivering methyl groups.

The balance and timing of methylations in your body will be disrupted.

After seeing the description of the above-mentioned methyl cycle, everyone should have a general understanding of the formulation concept of "methyl donor products".

SAMe has an extremely wide range of functions and is involved in over 100 chemical reactions within the human body.

Let's take a look at a few that are most relevant to daily health.

SAMe and Hormones - Not Just "Producing", But Also "Cleaning"

1. Stress hormone: Adrenaline

When feeling stressed, anxious or rushing to finish work, the body will secrete cortisol and adrenaline.

But perhaps you don't know that when converting the "preliminary version" of norepinephrine to the "final version" of epinephrine, SAMe is needed to assist in this step.

That is to say: Every time you get nervous, you will consume a certain amount of SAMe.

If one remains in a state of high stress for a long time, the adrenal glands keep producing adrenaline, and SAMe will be consumed in large quantities.

At this point, the SAMe reservoir is prone to running dry, especially for the elderly.

What are the consequences? In other areas where SAMe is needed - such as emotional regulation and estrogen clearance - there will be no supply of the ingredient.

This creates a vicious cycle: the greater the pressure, the less SAMe is produced.

The less SAMe one has, the worse their emotional regulation becomes, and the more likely they are to experience anxiety.

2. Estrogen: "Sorting" of used products

This is an important point that many female friends need to pay special attention to.

After fulfilling its function, estrogen needs to be broken down and excreted from the body.

However, this decomposition process is somewhat dangerous - if not handled properly, it can produce some "toxic waste" (quinone compounds), which can attack your DNA and increase the risk of diseases such as breast cancer.

Then who will deal with all this garbage? It's an enzyme called COMT, and the tool it needs to do its job is the methyl group provided by SAMe.

In other words, SAMe is like a worker at the "estrogen waste disposal plant".

If there are enough workers, the garbage can be cleared away in time; if there aren't enough workers, the garbage will just pile up there, and over time, problems may arise.

What's more troublesome is that approximately one quarter of the population have a naturally lower efficiency of the COMT enzyme (due to genetic polymorphism).

If these people lack methyl donors (such as SAMe, folic acid, B12, and betaine), the metabolism of estrogen will be even more blocked, leading to symptoms such as premenstrual irritability and breast hyperplasia.

3. "Indirect Relationship" of Other Hormones

Dopamine and norepinephrine (responsible for happiness and concentration) - their "cleanup after work" also requires COMT + SAMe.

Therefore, a deficiency in SAMe can also affect your emotional stability and concentration.

Melatonin (regulates sleep) - From serotonin to melatonin, the final step also requires SAMe to provide a methyl group.

Therefore, people with poor methylation status may also experience a decline in sleep quality.

three "key applications" of SAMe

1. Protect liver - strongest evidence

The research on SAMe's role in liver protection is the most comprehensive. It can help:

Synthesize glutathione (the body's most important antioxidant)

Repair the liver cell membrane

Promote bile excretion and alleviate bile stasis

The "Diagnosis and Treatment Guidelines for Drug-Induced Liver Injury (2023)" in China has listed SAMe as an I-level recommendation for bile-promoting treatment.

For patients with alcoholic liver disease, fatty liver disease, and drug-induced liver injury, SAMe is a commonly used adjunctive treatment method in clinical practice.

2. Emotions - Supporting Role

SAMe can help the brain synthesize more "happy neurotransmitters" (dopamine, norepinephrine), thus having a certain antidepressant effect.

Multiple studies have found that 800-1600 milligrams of SAMe per day, whether used alone or in combination with antidepressants, can improve depressive symptoms.

But to be honest: Currently, the mainstream international guidelines do not consider SAMe as the first-line treatment for depression.

Instead, it is more often used as an alternative option for those who are intolerant to or do not respond well to standard medications.

3. Joints - A Gentle Alternative to NSAIDs

For knee osteoarthritis, the pain-relieving effect of SAMe is similar to that of some commonly used anti-inflammatory drugs (such as ibuprofen and naproxen), but it causes much less irritation to the stomach.

For elderly people with poor stomach conditions or those who cannot take anti-inflammatory drugs, SAMe is a good alternative.

How to choose right SAMe supplement on market?

The molecule SAMe is particularly "sensitive" - it is afraid of heat, moisture and stomach acid.

Therefore, for the same amount of capsules, the effects of different brands can vary by several times.

When making a purchase, focus on three key points:

1. Look at proportion of "(S,S)-SAMe"

SAMe exists in two forms. Only one form (S,S form) is active, while the other form (R,S form) is waste.

During storage, the active substances will gradually transform into inactive ones.

The standard set by the United States Pharmacopeia (USP) is: the active form should be no less than 60%.

Top brands can achieve: a production level of no less than 75%, and this level must remain above 75% throughout the entire warranty period.

If a product does not indicate this ratio, or if its price is extremely low, it is very likely that most of it is already "waste".

2. Check if it is a "enteric-coated tablet"

Because SAMe will decompose in gastric acid, good products will definitely be made into enteric-coated tablets.

This way, the tablets can safely pass through the stomach and only release and be absorbed in the small intestine.

If the product does not have the label "enteric-coated", you can generally skip it.

References

[1] The Beijing Genomics Institute (National Bioinformatics Center) has collaborated to create a Chinese composite DNA methylation clock: https://www.big.cas.cn/xwdt/kyjz/202403/t20240329_7060251.html

[2] Richardson, B., Strickland, F., Liu, Y., & Li, Y. (2010). Age-dependent decreases in DNA methyltransferase levels and low transmethylation micronutrient levels work together to enhance the overexpression of genes related to autoimmunity and acute coronary syndromes. Experimental Gerontology, 45(4), 312-322. https://doi.org/10.1016/j.exger.2009.12.008