There are various points to note when exporting health foods overseas. In India, for example, health foods are gaining popularity amid rapid economic growth. But, any bovine-derived material is banned and plant-only supplements are in demand for vegetarians.
For Muslim nations, any swine-derived material is strictly banned. Also, you need a certification (Halal) to indicate that your products are free of swine-derived materials.
In Europe and Middle East, you will be required to present a certificate issued by the government. This is tricky. As I mentioned earlier, health foods are handled like common foods in Japan. Therefore, such a certificate does not exist.
This partly explains why exports to Europe and Middle East are hindered.