Short story with 5 prepositional phrases in it

Which techniques best describe the tone the author is using in this passage?

The tone of a story is the author's attitude toward the subject. provide two examples that support the conclusion that the tone of this story is ironic.

Read the passage. (1) since prehistoric times, milk has been a vital source of nutrition for human beings. (2) some doctors and nutritionists believe that consuming milk can be detrimental to our health. (3) milk is one of the most nutrient-dense beverages we can consume and it should be an essential part of a healthy diet. (4) drinking just one 8-ounce glass of milk per day puts you well on your way to meeting recommended daily intakes for important nutrients. which transition would be best to use at the beginning of sentence 2? finally additionally however specifically