Black garlic was first developed in Korea, and although it has long been appreciated by food enthusiasts, it has recently started gaining attention among people interested in nutrition. What makes black garlic unique is not a special ingredient, but the way it is made.

Whole bulbs of fresh garlic are kept in a humidity-controlled environment at around 140–170°F for about 30 days, followed by a resting period of approximately 45 days. No chemicals, no additives—just time, controlled heat, and oxidation.

During this slow transformation, the white cloves turn jet-black and become soft, sweet and chewy. The flavor is often described as caramelized, balsamic, slightly fruity, and mild, without the strong bite usually associated with fresh garlic.

Even people who normally dislike garlic are often surprised by how pleasant the taste is.

Why It Turns Black

Although many people describe the process as “fermentation,” it technically isn’t. The change has more to do with enzymes and the Maillard reaction (the same process that gives browned food its rich flavor). As the sugars and amino acids react, the cloves darken and develop their signature texture and taste.

At the same time, the chemical composition of the garlic changes. Certain compounds decrease, while others increase dramatically.

Twice the Antioxidant Content

Research has shown that black garlic contains significantly higher levels of antioxidants than fresh garlic. Some studies have even reported double the antioxidant activity.

One compound that stands out is S-allyl-cysteine (SAC). SAC has been widely researched for its stability, excellent absorption, and overall bioavailability.

Fresh garlic is richer in allicin, which is often associated with support for the body during infections. Black garlic, on the other hand, contains less allicin but higher amounts of other beneficial compounds. This means:

• both types of garlic have value,
• but they may be better suited for different purposes.

A Story of Psoriasis Improvement

There is a well-known account of the Mandarin artist Choo Keng Kwang, who reportedly experienced a dramatic improvement in his psoriasis within a few days after eating half a bulb of black garlic daily. While singular stories like this cannot be treated as a medical guarantee, they continue to inspire interest and research.

When Garlic Starts to Sprout… Don’t Throw It Away

If your garlic bulbs grow bright green shoots, resist the urge to discard them. Research published in the Journal of Agricultural and Food Chemistry found that garlic sprouted for five days had higher antioxidant activity than fresh, non-sprouted bulbs.

This makes sense when we consider how plants behave. When seeds and bulbs sprout, they produce new protective compounds to support the emerging young plant. These compounds can offer additional nutritional benefits.

Laboratory tests have even shown that extracts from sprouted garlic helped protect cells from certain types of damage.

Sprouting Intentionally

Growing sprouts at home is easy and requires almost no space. Sprouted seeds, beans and grains can offer concentrated nutrition. It is often said that sprouts may contain many times the nutrients of mature vegetables, while also being easier for the body to absorb.

General benefits reported in research include:

• Support for natural cell renewal
• High levels of antioxidants, enzymes, vitamins and minerals
• A natural alkalizing effect in the body
• Abundant oxygen content that may help maintain cellular health

Because of this, sprouting is a popular addition to a natural diet.

Black Garlic, White Garlic — Both Have Their Place

Whether you prefer to use fresh garlic or experiment with black garlic, both versions offer their own enjoyment and benefits.

Garlic pairs well with almost anything:

• roasted meats
• soups and stews
• salad dressings
• sautéed vegetables
• dips and spreads
• vegetable juices

It is one of those ingredients that can make food more flavorful while supporting general well-being at the same time.

A Note on cancer

Some laboratory studies have explored how black garlic extracts may influence processes related to abnormal cell growth, including cancer. These studies are preliminary and mostly performed on cells or animals, not people. They should not be interpreted as treatment information, but they do make black garlic an interesting topic for future scientific research.

Final Thoughts

Black garlic turns a familiar kitchen ingredient into something completely different:

• sweeter, softer, richer
• with a unique flavor profile
• and elevated antioxidant activity

It is a culinary ingredient worth trying—whether you cook with it, spread it on bread, mix it into sauces, or simply eat it on its own.