Celebrity nutritionist Rujuta Diwekar recommends traditional Indian winter foods to combat cold, boost immunity, and improve digestion. She highlights regional staples like bajra bhakri with loni (white butter), flaxseed chutney, mandua (ragi) roti, kulith paratha, and cholai (amaranth leaves). Diwekar emphasizes that these seasonal, locally-sourced foods naturally provide warmth and nourishment, countering the effects of colder weather without relying on imported superfoods.