Create a table without a header in Markdown

Is it possible to create a table without a header in Markdown?

The HTML would look like this:

<table>
<tr>
    <td>Key 1</td>
    <td>Value 1</td>
</tr>
<tr>
    <td>Key 2</td>
    <td>Value 2</td>
</tr>
</table>