Besides beneficial bacteria, Kimchi is also a great source of beta-carotene, calcium, iron and vitamins A, C, B1 and B2. Kimchi is one of the best probiotic foods you can add to your diet, assuming you can handle the spice, of course.ne of the best probiotic foods is live-cultured yogurt, especially handmade. Look for brands made from goatâs milk that have been infused with extra forms of probiotics like lactobacillus or acidophilus. Goatâs milk and cheese are particularly high in probiotics like thermophillus, bifudus, bulgaricus and acidophilus.