Right after the start when you are in the house, collect the poison in the kitchen by the dumb waiter as well as the poison from the work surface which is also in the kitchen. Now make the poisoned wine and drink it. Press the enter key to take you to the inventory and actions screen to see your body points. It will be on minus 1000 at least. Now repeat this process until the minus disappears and you'll be left with approximately 32000 body points.

Also, to enhance this and to stop yourself from getting drunk at the end of the process, collect the frying pan before hand and when you have 32000 body points, use it!