Secret anti-aging compound in aged garlic could preserve muscle strength, say researchers

What if a simple kitchen condiment held an anti-aging secret? anti-aging secret capable of preserving muscle strength as we age? A study published in May 2026 in the journal Cell Metabolism sheds new light on the subject. Researchers have identified a compound present in aged garlic, opening up a promising avenue for combating age-related fragility.

A sulphur compound at the heart of the discovery

Scientists from the University of Washington and Japanese institutions have identified S-1-propenyl-L-cysteine (S1PC), a sulfur compound found in aged garlic extract. The latter appears to play a key role in preserving muscle mass. In other words, this anti-aging secret could be hiding in our fat cells.

Loss of muscle strength is one of the most silent consequences of aging. It can transform a simple misstep into a serious fall, and then into loss of independence. Consequently, finding solutions to prevent it is a major public health issue.

Adipose tissue as a signal relay

The S1PC triggers a chain reaction in adipose tissue, the reserve where the body stores lipids. This reaction then sends a signal to the brain. As a result, the muscle strength of treated mice was significantly preserved.

“A recently published study showed that a compound present in aged garlic extract improved muscle strength and decreased frailty in aged mice.”

The study, published on May 7, 2026, was first carried out on aged mice. Researchers gave them S1PC for 8 months, either mixed into their food or dissolved in water. The results were convincing for this potential anti-aging secret.

Measurable improvements in mice

Mice given a daily dose of S1PC showed significant improvements in muscle strength. In contrast, untreated mice of the same age did not benefit from these effects. Their overall frailty score improved, as did their grip strength.

Significantly, these benefits appeared without any increase in muscle size. Garlic’s anti-ageing secret therefore acts on the quality rather than the quantity of muscle tissue. This nuance opens up interesting prospects for future research.

• Compound S1PC comes from aged garlic extract
• It activates a reaction in adipose tissue
• This reaction sends a signal to the brain
• Mouse grip strength improves
• Overall fragility score decreases

These initial results prompted the researchers to extend their work to humans. This is an essential step before confirming the efficacy of this compound in humans.

Administration in concentrated form

For their human trials, the scientists recruited over 40 healthy Japanese adults. These volunteers ranged in age from 20 to 49. Some of them received the compound in the form of highly concentrated garlic powder.

After administration, the researchers observed an increase in blood levels of S1PC in most participants. This result confirms that the human body does indeed absorb this compound. Garlic’s potential anti-ageing secret thus takes an important step forward.

The decisive role of adipose tissue

One observation caught the researchers’ attention: the increase in blood S1PC did not occur in underweight people. In other words, an adult with very little adipose tissue might not respond to the S1PC signal. This underlines the importance of fat reserves in this mechanism.

Here, adipose tissue acts as a relay between the ingested compound and the brain. Without it, the signalling chain seems interrupted. What’s more, this observation serves as a reminder that body fat fulfils biological functions that are sometimes overlooked.

The researchers point out that these preliminary results have not yet made it possible to measure the long-term effects of S1PC on human muscle function. Further long-term studies are therefore required. This anti-aging secret remains a lead to be confirmed rather than an established certainty.

Further research

At present, scientists cannot confirm that the garlic compound produces the same muscular benefits in humans as in mice. Future studies evaluating muscle function over time will have to be carried out. Caution is therefore called for.

Nevertheless, this research opens up a promising avenue for the prevention of age-related frailty. It also reminds us that some solutions can be found in our daily diet. Aged garlic, an age-old condiment, could hold an unsuspected anti-aging secret.

• anti-aging secret