Customer vs Client

A customer or a client is a person who buys goods or services. The term client is mainly used for service industries, and implies a regular contact between the buyer and the seller. A consumer is a person who buys goods or services for their personal use. The term is also used to talk about someone who uses the product / service. For food, the customer is the person who buys it and the consumer is the person who eats it. However, the two terms are often used interchangeably without any particular attention to the difference in meaning.