Drinking yogurt after meals aids digestion, "Diabetics shouldn't consume yogurt," "The more sour the yogurt, the more nutritious it is"... Have these claims influenced your perception of yogurt? But are they actually true? This issue, I'll debunk the myths surrounding yogurt consumption.
1. Drinking yogurt after overeating helps digestion.For many, "aiding digestion" is yogurt's most valued health benefit, making it a go-to choice after overeating. While yogurt does promote gastrointestinal motility and digestive secretion, regular consumption can indeed improve digestion. However, drinking it after overeating isn't recommended. Yogurt itself is quite filling, and consuming it when already full can intensify that sensation of fullness, actually hindering digestion.Moreover, yogurt contains calories. Consuming it after overeating adds extra calories, which may lead to weight gain over time. There's no strict timing for yogurt consumption—it can be enjoyed between meals or before eating. 2. Yogurt is less effective than milk for calcium supplementation. When it comes to calcium, most people think of milk rather than yogurt.In fact, an equal amount of yogurt contains slightly more calcium than milk. During fermentation, lactic acid bacteria break down the lactose in milk into lactic acid, reducing lactose content while retaining other nutrients. Thus, yogurt still provides calcium benefits. Moreover, calcium absorption from yogurt is no less effective than from milk, as lactic acid and peptides produced from protein breakdown both enhance calcium absorption.
3. Diabetics should not consume yogurt. Compared to milk, yogurt contains higher sugar levels, leading many diabetics to view it as off-limits. However, despite added sugar, yogurt does not cause rapid blood sugar spikes. The lactic acid in yogurt slows gastric emptying, aiding in post-meal blood sugar control.Additionally, yogurt is rich in calcium, which aids normal insulin release and helps balance blood sugar. Therefore, diabetics can safely consume one cup (approximately 125 grams) of yogurt daily. Those particularly concerned about blood sugar levels may opt for low-sugar varieties.Many people wonder: since it's called "sour milk," does greater acidity indicate superior nutrition? The sourness in yogurt stems from lactic acid produced by lactic acid bacteria metabolizing lactose, influenced by factors like the fermentation strain and duration. In yogurt production, the dominant strains are Lactobacillus bulgaricus and Streptococcus thermophilus. If bulgaricus predominates, the yogurt will be more acidic, but this does not necessarily indicate higher quality.Furthermore, yogurt's acidity has limits. If it breaks the cold chain during storage or logistics—such as being left at room temperature or outdoors—lactic acid bacteria multiply rapidly, causing acidity to exceed acceptable levels. Such yogurt tastes excessively sour, with reduced bacterial activity and increased protein denaturation, hindering digestion and compromising gut health.Thickeners in yogurt cause "blood viscosity." Yogurt contains various thickeners, including pectin, agar, and edible gelatin. These are indigestible and belong to insoluble dietary fiber. Not only are they non-toxic and harmless, they do not cause "blood viscosity." They also help slow post-meal blood sugar and lipid increases, making them beneficial components for preventing chronic diseases.The safety profile of thickeners is generally very high, so their usage is unrestricted in many foods. The amounts used in yogurt also comply with relevant national standards.
6. Room-temperature yogurt has little nutritional value.Compared to refrigerated yogurt ("live-culture yogurt"), shelf-stable yogurt ("sterilized yogurt") undergoes heat treatment after lactic acid fermentation, killing the live bacteria. This allows it to be sold and stored at room temperature. Nutritionally, the key difference between refrigerated and shelf-stable yogurt lies in the presence of "live lactic acid bacteria"; other nutrients remain largely unchanged.If seeking the benefits of lactic acid bacteria, choose refrigerated yogurt. For those who don't require live cultures, non-refrigerated yogurt holds a market advantage. Even without lactic acid bacteria, the protein, calcium, and vitamins in yogurt remain intact. Thus, non-refrigerated yogurt is a better choice for individuals who lack refrigeration or convenient access to refrigerated yogurt (such as students or travelers). Similarly, if your stomach can't tolerate cold beverages, you can heat the yogurt before consumption.