Just like anything else, when it comes to diet, nobody is perfect. True, some are better than others at sticking to a healthy and sensible meal plan, but even the most stalwart dieters still have room for improvement.

In a study on women's diets, published in Topics in Clinical Nutrition, researchers looked at how close most women are to, or how far they are from, consuming the RDA of certain nutrients.

Here's a breakdown of five of them:

1. Sugar -- RDA: 32g. Women Eat: 53g.

2. Vitamin A -- RDA: 1mg. Women Eat: .77g.

3. Iron -- RDA: 18mg. Women Eat: 13.32mg.

4. Vitamin E -- RDA: 15mg. Women Eat: 5.25mg.

5. Fiber -- RDA: 25g. Women Eat: 14g.

As mentioned, these figures represent the Recommended Daily Allowance vs. what the average American woman consumes. While there's not a tremendous disparity between the numbers, it's still clear that some dietary changes could be made.