It’s a loaf story, baby, just say, “yes.” Taylor Swift, 35, has been candid about her latest carbohydrate obsession — and it could be a slice of salvation for your health. “Sourdough has taken over my life in a huge way,” Swift shared on an episode of her fiancé Travis Kelce’s “New Heights” podcast. “I’m really talking about bread 60% of the time.” Sourdough, a bread made from flour, water, salt and a starter, doesn’t require the yeast or chemical additives that are used to make conventional