My wife recently competed in the Arnold Amateur Figure Competition – the largest competition of its kind in the world. This is like a beauty contest in a bikini. Women are judged on their muscular physique and posing.

A 30-year-old mom of two, she swept the competition! (And the women she was competing against were 21- to 25-year-old non-moms.) What is her secret to staying lean and muscular? For one thing, she sticks to five essential foods:

1. Organic eggs
2. All-natural grass-fed beef
3. Wild salmon
4. Avocados
5. Whey isolate

These five fat-burners are staples in her diet. Why are they so critical to keeping the fat off? You see, unlike men, women are very sensitive to the fat-storing hormone insulin. (It’s because they have lower testosterone levels.) These five foods help keep insulin – and blood sugar – low, therefore helping to keep fat off.

These foods are also rich in healthy fats, which help us stay fuller longer, thereby warding off binge eating and snacks.

[Ed. Note: Shane Ellison’s entire career has been dedicated to the study of molecules – how they give life and how they take from it. He was a two-time recipient of the prestigious Howard Hughes Medical Institute Research Grant for his research in biochemistry and physiology. He is a bestselling author, holds a master’s degree in organic chemistry, and has first-hand experience in drug design. Take advantage of his knowledge and insights to look and feel your best in 90 days.]