Some claim drinking milk on an empty stomach wastes protein by converting it into energy. In reality, milk contains about 4.5% lactose—a carbohydrate that prioritizes energy production to conserve protein. Additionally, milk's roughly 3% fat content also contributes energy. Thus, drinking milk on an empty stomach does not waste protein.
Infants under one year old can absorb nutrients from milk on an empty stomach, proving its comprehensive nutritional profile is fully usable by the body. Even with slightly reduced digestibility, drinking milk before breakfast when time is tight is still healthier than skipping breakfast entirely.
Tip: Drink plain water before milk
Avoid making milk your sole beverage in the morning. Upon waking, start with a large glass of plain water (or lightly sweetened honey water during dry indoor heating seasons), followed by milk. Milk has a higher osmotic pressure, making it less rapid and effective than plain water for hydration.
Who should avoid drinking milk on an empty stomach?
Note: If you experience bloating or diarrhea after drinking milk, it's indeed unwise to consume large amounts on an empty stomach. Instead, eat some starchy foods first, then drink milk in small amounts over multiple sessions. Yogurt is the best choice.
Twenty years ago, experts advised against drinking milk on an empty stomach because most people rarely consumed dairy. After weaning from breast milk, dairy products were scarcely encountered. This prolonged lack of exposure led to "lactose intolerance," causing bloating, diarrhea, and indigestion upon milk consumption. Drinking milk too quickly, especially on an empty stomach, exacerbated these symptoms.
Times have changed, and dietary habits have evolved. Many children and young adults now regularly consume milk, yogurt, ice cream, and even cheese from an early age. Their ability to digest lactose is strong, and drinking milk on an empty stomach rarely causes discomfort. Therefore, the notion that "milk should never be drunk on an empty stomach" needs revision—at the very least, it should be qualified with caveats and not applied universally.
Milk as a Quick Fix, Helping Prevent Illness
If you've been drinking milk regularly since childhood without issues like lactose intolerance, drinking milk on an empty stomach poses no health risks.When mornings are rushed and there's no time to cook, grab a glass of milk or carry a carton to drink on the go. It can stave off hunger for 1-2 hours, boosting study or work efficiency. Compared to skipping breakfast entirely, a milk-based breakfast not only provides substantial nutrients but also helps prevent stomach ailments and gallstones, while promoting a calmer, more balanced mood.