The Thai Ministry of Public Health has set new standards for fish oil products, effective in two years, regulating the fatty acid composition and vitamin levels. The standards, based on the CODEX guideline, require a certain percentage of EPA and DHA in concentrated fish oil and a specific composition for krill oil. The regulations also limit the total oxidation value of fish oil and specify vitamin A and D levels, excluding vitamin contents for fish oil derived from deep sea shark liver oil. The oil can be classified into five types, based on the species of fish and shellfish. The production process involves various treatments and refinements.