Introduction
As a unique culinary ingredient and superfood, black garlic has grown in popularity due to its possible health advantages as well as its rich, caramelized flavor. The fermentation procedure used to make this aged white garlic improves its antioxidant qualities while changing its flavor, texture, and nutritional makeup. Black garlic offers a distinct set of qualities, while classic white garlic is well known for its therapeutic use. Black garlic has many health benefits that are now being studied by scientists, ranging from improving digestion and cardiovascular health to improving neurocognitive function.
How Does White Garlic Transform or Age Into Black Garlic?
Black garlic is the aged version of raw garlic that turns black from its regular or originally white color owing to the Maillard reaction chemical process occurring in between amino acids and the reducing sugars. When regular, white garlic is for an extended period exposed to humid temperatures, then the color of garlic changes to a typical or characteristic brownish-black color. This aging process that would be naturally stimulated by humid conditions tends to not only change the color of garlic, but there are also significant differences in the texture, taste, and smell of black garlic, compared to white garlic.
Black garlic is significantly less aromatic, sweeter in terms of flavor, and has a very sticky and soft texture or consistency. The aging process from white to black garlic can also impact the bioactive compounds that are inherently in garlic, such as the excess allicin content in white garlic, which gets reduced in the black version and with the increase of other compounds, like phenols and organosulfur compounds in black garlic.
What Is the Need for More Investigation?
So how healthy is black garlic? Is it equally as healthy as white garlic and are there any specific indications or contraindications for consuming this spice? Let us explore the research-based evidence from a nutritional perspective.
The health benefits of regular garlic are of course numerous and currently supported by scientific research. However, scientific research that is investigating black garlic's benefits for humans needs further ongoing analysis reports by experts, which necessitates more extensive studies with many of its health benefits yet to be completely proved. One of the drawbacks even with the below enlisted scientific evidence regarding black garlic health benefits is that most of the researchers have studied the effects of using aged garlic extracts, not just the regular aged edible black garlic. Hence more research is ongoing and needed to prove the in-depth benefits of this food.
What Are the Research-Based Health Benefits of Black Garlic?
1. Scavenger of Harmful Free Radicals:
Consumption of black garlic is associated with improved cellular immunity, as it can prevent oxidative stress just like white garlic and has the potency to scavenge the circulating free radicals that are capable of initiating cell stress, programmed cell death or apoptosis, and systemic diseases. Black garlic is known to comprise of fact more than 20 well-documented polyphenolic compounds, as per nutritional research currently, which means that as a source of antioxidants, these score much higher concentrations for scavenging the harmful free radicals, in comparison to the moderate antioxidant effect exerted by white garlic.
Currently, nutrition experts recommend individuals consume diets that are rich in antioxidants, which are associated with improved systemic health, more longevity, and reduced predisposition to certain chronic disease patterns.
2. Can Be Included in a Heart-Healthy or Cardioprotective Diet:
Research: Studies show that the intake of garlic supplements can reduce low-density lipoprotein (LDL) cholesterol and overall systemic blood pressure.
In one major research study, trial participants suffering from congestive heart failure were given black garlic supplements containing approximately 0.7 ounces of its concentrated extract for around a month. After regular consumption of the supplements for six months, researchers recorded improved systemic outcomes in these participants of congestive heart failure (CHF), including improved circulatory capacity and increased potency or cardiovascular immunity in six-minute walking tests recorded for examining physical endurance.
Smaller research studies also demonstrate that consumption of black garlic regularly for a 12 week time period or approximately three months resulted in improved systemic immunity and improved cardiovascular health. However these are preliminary research studies and need further scientific investigation, with the hint of a promising potential for cardiovascular health by regularly consuming black garlic.
3. Benefits of Gut Microbiome:
Black garlic comprises large concentrations of melanoidins, the basic prebiotic known to improve digestion in the upper gut region, useful for the essential breakdown of several dietary nutrients. It is important to know that prebiotics are excellent food sources of dietary elements that can help improve nutrient absorption, regular bowel movements, improve gut microbiome, and also prevent constipation.
4. Improved Neurocognitive Health:
Regular consumption of black garlic can impact neurocognitive health positively according to current nutrition research because of the immense antioxidant properties and reduction in overall oxidative stress that plays a role in systemic inflammation. Some research studies further demonstrated that black garlic consumption on a regular basis can help improve memory and prevent cerebral plaque forms.
Although more research is needed, other potential benefits of black garlic from preliminary medical studies include:
- From suppression of the allergic response in your body to its anticancer properties, owing to its rich antioxidant content, black garlic has numerous research-based benefits too.
- Current nutrition research states that consumption of black garlic would help possibly regulate blood sugar levels in diabetics, improve the liver enzyme markers in blood or support liver health, and offer natural immunity through your diet, by protecting your cells against oxidative stress (owing to the antioxidant allicin content that is higher in black garlic compared to white garlic).
What Are the Contraindications of Black Garlic?
However, if you are suffering from any underlying systemic diseases or you are taking any medications specifically like anticoagulant therapies, you have a medical history of gastrointestinal sensitivity, issues or food sensitivity reactions - then in these conditions, the safety concerns of black garlic are questionable. Hence you can ask your registered physician, nutritionist or healthcare professional to guide you on the same if you are on any medical therapy or you have underlying systemic conditions.
Conclusion
Black garlic is an overall soft, delicate and consistent food that can be experimented with in numerous ways, in creative recipes or even in your morning toast, dips, spreads, or roasted veggies for improving the nutritional content of your food. In comparison to white garlic, while it may certainly taste much less spicy and sweeter, the black garlic flavors as well as nutritional content almost resemble that of dried fruits. Just like fleshy fruits that are dried and have richer compound content, black garlic can have higher allicin content and sulfur compounds.
