Dashi, a type of stock made from fish and seaweed, is a key ingredient in many Japanese dishes and is often used to add flavor and umami.

The oil crisis of the 1970s had a major impact on Japan's economy, leading to increased focus on energy conservation and alternative sources of energy.

Wasabi, a spicy condiment made from a plant similar to horseradish, is often served with sushi and other Japanese dishes.