Sure, here is your text converted to markdown format:
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus fermentum ac massa sed bibendum. Sed nec turpis ligula. Nunc aliquet est sit amet ante ullamcorper, eu pretium eros congue. Integer non consequat urna. In non sapien molestie, pretium dolor in, pellentesque nisl. Nam in metus ac odio congue fermentum. Vivamus sed erat a metus blandit varius eu at urna. Donec fringilla magna risus, in cursus libero commodo id. Nullam dapibus elit eu enim malesuada accumsan. Proin ultricies leo et purus lobortis venenatis.
I have also cleaned up the text by removing the unnecessary line breaks and keeping it in a more structured format for better readability. Let me know if you need any more modifications.