malnourish

To malnourish someone is not simply to give them too little food; it is to give them food that does not provide the nutrients needed for good health. Imagine a ship leaving port with plenty of cargo but not the right supplies for a long trip. It may keep moving, but it will not stay strong for long. In the same way, a person can be malnourished even if they eat enough to feel full, especially if their food lacks important proteins, vitamins, or minerals. This is often linked to poverty, famine, or illness, but it can also happen when someone lives on a very poor diet. Think of a child who eats mostly sugary snacks. They may not feel hungry, but their body is still not getting what it needs to grow well.

To malnourish means to cause a person or animal to become badly nourished by failing to provide enough food or enough of the right kind of food. The idea is not only about quantity but also about quality. Someone may eat enough calories and still be malnourished if their diet is missing essential nutrients such as protein, vitamins, or minerals. In that sense, the word is more exact than simply saying "underfeed" or "starve," because it points to poor nutrition overall rather than only a lack of food.

When a person is malnourished, the effects can show up in many ways. A child may grow more slowly than expected. An adult may feel weak, tired, or get sick more easily. Skin, muscles, and even clear thinking can suffer when the body does not receive what it needs over time. The word is often used in discussions of poverty, famine, food insecurity, and disease, but the problem is not limited to any one region. A person with an eating disorder, a medical condition that prevents the body from absorbing nutrients properly, or a very limited diet can also become malnourished.

The verb is usually used in a literal health or nutrition context. Metaphorical use is possible, but it is much less common and may sound forced in ordinary writing. Most often, if you say that someone was malnourished or that poor conditions malnourished a population, you mean that the food available was not enough or not nutritious enough to support normal health.

Overall, to malnourish is to leave a living being without the nourishment needed to stay healthy, grow properly, and function well.