Oishinbo is a drama about newspaper reporters. The main character is a cynical food critic named Yamaoka. Oishinbo is a popular mainstream comic for adults in Japan. It is even mentioned in an episode of "Iron Chef."

[Source: AniDB]

Ultimate Menu and Supreme Menu square off in a cooking battle about dishes that promote longevity. For Supreme's Kaibara Yuzan and Ultimate's Yamaoka Shirou (who are father and son), this confrontation is more than strictly business: it's personal.

[Source: BakaBT]

The Oishinbo gang takes time off from the normal culinary wars to get involved with a political dispute about American rice imports. The economic conflict between a pushy US Senator from California and a nationalistic Japanese politician is further complicated by concerns about the cumulative effect of pesticide use in both American and Japanese agriculture.

Unaired pilot of Oishinbo included with the first Blu-ray box. It tells a similar story to that of episode two of the main series.

[Source: MyAnimeList]