The Truth About Weight Loss: Understanding Enzymes and Establishing a Scientific Approach to Fat Reduction

Enzymes: Is it true that drinking enzyme drinks aids weight loss?

Many people have likely tried enzyme drinks during their weight loss journeys. My first encounter with enzymes occurred while visiting a grandmother's home, where she offered me her homemade fruit enzyme concoction—the sort brewed in large plastic barrels holding dozens of litres. Frankly, it looked rather alarming to me at the time, but she insisted it was wonderful and miraculous, urging me to drink it. Later research revealed enzymes hold no such mystical properties.

Enzymes are not actually a weight-loss drug. The term ‘enzyme’ is a Japanese designation; in essence, they are a fermented product, with a production process somewhat akin to making pickled cabbage at home. The beer, rice wine, and yoghurt we drink regularly, along with kimchi, are all fermented products.

Common enzyme products are essentially mixtures made by fermenting fruits, vegetables, or grains. When we consume these enzymes, we ingest some nutrients from these foods. However, the vast majority of these nutrients are already present in the food itself and are largely unaffected by fermentation.

The component in enzymes believed to be most beneficial to the human body is the enzyme itself. Enzymes in common enzyme products are primarily divided into two types: digestive enzymes and metabolic enzymes. Proteases, lipases, and amylases fall under digestive enzymes. These enzymes are clearly designed to break down proteins, fats, and starches. Metabolic enzymes include oxidoreductases and dehydrogenases, which participate in various metabolic activities within the human body.

Thus, the primary functions promoted for enzymes are enhancing digestion, absorption, and metabolism.

However, enzymes are proteins. When ingested orally, gastric acid and proteases in the digestive tract break them down into amino acid fragments, rendering the enzymes inactive. Consequently, the benefits of enzymes are largely unachieved. Ultimately, one merely absorbs a small amount of amino acids, equivalent to supplementing only a minimal quantity of protein. Protein-based medications require their integrity to be preserved to be effective, hence they cannot be taken orally. Insulin, for instance, can currently only be administered via subcutaneous or intravenous injection.

Moreover, for individuals with normal digestive function, provided one does not indulge in excessive eating three times a day, the digestive enzymes secreted by our own organs are sufficient. Thus, the enzymes in enzyme supplements are largely redundant for most people. Those with poor digestion would be better off purchasing enzyme tablets, which are more effective. Their multi-layer encapsulation ensures enzymes are released at the appropriate point in the digestive tract, preventing degradation in the stomach, and they are also cheaper than enzyme supplements.

Thus, whether viewed from a nutritional or enzymatic perspective, enzyme supplements offer nothing particularly special. Individuals who eat well and avoid being fussy about food have no need for them whatsoever.

So, can drinking enzyme supplements actually aid weight loss?
Numerous online articles claim the weight loss mechanism of enzymes lies in detoxification. However, detoxification itself is a highly ambiguous concept, lacking recognition in modern medicine. The so-called detoxification promoted by most weight loss products merely stimulates bowel movements, inducing diarrhoea to expel water and reduce nutrient absorption.

Consider a certain prominent micro-business product that advocates consuming only enzymes for weight loss over a period. The resulting weight loss is entirely unrelated to enzyme consumption. With such drastically reduced caloric intake, frequent hunger naturally leads to weight loss. Replacing the enzymes with beer would yield identical results. Thus, the essence of enzyme-based weight loss boils down to achieving an energy deficit.

Of course, enzymes do offer benefits. Their emergence has heightened public health awareness, prompting recognition of inadequate daily nutrient intake. Enzymes themselves contain considerable nutrients, though this depends on the raw materials. For instance, individuals who are perpetually busy, dislike or lack time for fruit and vegetables may benefit from enzyme supplements to obtain sufficient produce and vitamins. This is particularly popular among female office workers. However, if one already maintains an exceptionally well-balanced diet, the inclusion of enzymes makes little discernible difference.

Thus, while enzymes possess some nutritional value and are perfectly acceptable as a daily beverage, claims regarding their efficacy for beauty enhancement, skin rejuvenation, or weight loss constitute entirely exaggerated rhetoric.