Since your breasts are primarily made up of fatty tissue, more fat in your chest area would increase your breast size. Fats that are found in olive oil, canola oil and peanut butter. With other factors such as massage techniques, sleep patterns and right mental attitudes you can make your breasts grow naturally. The most effective method that combines all these facets of natural breast enlargement is found in Nancy Newton’s e-book, “How I Made My Breasts Grow Bigger Naturally” I highly recommend Nancy’s techniques because they are comprehensive whereas most other methods only focus on one or two aspects of breast growth, which is why they fail.
You can opt for canola oil for enhancing your breasts.
Canola oil is proven to have no medical affect whatsoever on breast size. The people flogging this idea are snakeoil merchants... people who sell fake cures and miracle potions.
Fat distribution in the body does not work the way the previous answerer has described (Kristen).
If you want to make your breasts larger, eat food that is high in 'good fats'.