Its not the quote, its the other text that is copied from the source. For example your post-
Parents diet and health can have big role for the growth, development, safety and long-term health benefits of their offspring before their conception.
Source-
Parents’ diets and health can have profound implications for the growth, development, and long-term health of their children before their conception,
And so on, there are other paragraphs of yours also taken and slightly reworded from the source.