3 males a day ?

A Russian American lady came to see the doctor. She spoke in a very heavy Russian accent:

 Doc, I've been losing weight recently. I am so skinny now. Please, what shoud I do?

The doctor asked her a few questions and then advised her to eat enough:

 You should have at least 3 meals a day, OK? Then you will be OK. Come see me in a month or so.

A month later, the lady came to see the doctor again looking worse.

- What's happening here? You are now even more skinny than before. Did you take my advice seriously?

- Yes, I did, doctor. I always tried my best to have sex with three men each day!

- What? what do you mean?

- Didn't you say: "Try to have 3 males a day" ??!!