Food is anything that can be eaten and provides energy and nutrition for living things. It usually comes from plants or animals and contains protein, fats, carbohydrates, water and minerals. Liquids used for energy and nutrition are called drinks. Some people choose to eat only one kind of food or exclude certain foods. This is called being vegetarian or vegan.
Food production, storage, transportation and disposal have a large impact on the environment. It uses land, water and energy resources and produces greenhouse gases. Many people grow some of their own food, but most buy it in shops or at markets. Some countries have their own styles of cooking and eating, which are based on local ingredients and traditions.
Choosing to eat healthy can help reduce the risk of health problems such as heart disease, diabetes and obesity. It can also improve mood, boost immune function and maintain healthy body weight. Healthy food choices include plenty of green leafy vegetables, whole fruits, lean meats, fish and nuts/seeds. The key is to make small changes that you can stick with over time.
Most people today eat a variety of foods and are concerned about the nutritional value of what they eat. They are often interested in whether the food they are eating is good for them and if it will prevent diseases such as heart disease, cancer, diabetes and obesity.
In the past, people had to eat whatever was available to them. They may have eaten a lot of starchy vegetables, such as potatoes or corn (maize) and not enough fruit or meat or dairy products. Today, most people have more choice about what they eat and are concerned about the effect of their diet on their health, the environment and animal welfare.
People who want to eat healthy try to limit the amount of processed food they eat. This means they eat more fruits, vegetables, whole grains and low-fat milk. They avoid foods that are high in salt, sugar and unhealthy fats. They also try to eat more foods that are organic, which mean they have been grown or produced without the use of synthetic pesticides and fertilizers.
Almost everyone knows that a balanced diet is important for a healthy life. But understanding what makes up a healthy diet can be confusing. It’s easy to get overwhelmed by all the conflicting advice on what to eat. Taking a step back to consider your personal non-negotiables and what you’re willing to change can help you find a dietary approach that works for you.