Is meth amphetamine good for you if you ingest it in small quantities.?

I have been told taking a small amount of meth each day can help prevent some forms of cancer. Is this true. It sounded to good to be true but just thought I would check. Also when eating meth, is it better to mix it 50 50 with tabbaco for a richer smokey flavour. Also if i do decide to eat a small amount of meth each day does anyone know any nice meal recipes for meth?