There are two main categories of substances taken into the body:
1. Nutrients - these are essential for growth, development, and maintenance of the body. They include carbohydrates, proteins, fats, vitamins, and minerals.
2. Drugs and other substances - these are taken for medicinal or recreational purposes. They can include prescription medications, over-the-counter medications, illegal drugs, alcohol, tobacco, and caffeine.
Other substances that may be taken into the body include toxins, pollutants, and allergens, which can have negative effects on health.
Substances taken into the body
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