What is vitamin b1's food source

Vitamin B1 sources (thiamine) are found in many foods, although in small amounts. The best-known sources are Sunflower seeds, wheat germ, whole grains, and brewer’s yeast. All of these are better than pork, which is erroneously considered the best source of this vitamin. Refined products such as flour, sugar, and white rice contain little. Antivitamin…