I stayed at a natural food inn called Genmai Koso-san in Lake Toya Onsen for a gathering in 2016. The meals consisted only of brown rice and plenty of vegetables, making it very healthy. Dinner included dishes like chawanmushi, mountain vegetables, and kelp, all made with Hokkaido ingredients. However, the portion sizes were smaller than usual, so I ended up feeling hungry in the middle of the night. For breakfast, there were dishes like me-zashi and hijiki, also part of the healthy menu. They served Genmyo tea, a blend of 23 Japanese and Chinese herbs, which surprisingly had a delicious aroma. After meals, we would consume Genmai Koso powder, the company's main product, which comes in various types like Spirulina, Reishi, and Bifidus. It may take some getting used to the taste. When the weather is clear, the view of Lake Toya from the window is beautiful, and there is also a relaxing outdoor hot spring bath available.