The idea is that because bees collect pollen to make honey, by eating locally-produced honey, you’ll grow resistant to the pollen in your local area, in turn easing your hayfever response.
While most adults can eat honey without problems ... botulinum is so common in our environment, researchers believe that bees pick it up on their way to the hive, where they produce honey.
Some results have been hidden because they may be inaccessible to you