Mary Howley Ryan

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Books by Mary Howley Ryan

NOLS Backcountry Nutrition

By Mary Howley Ryan

Discover how nutrition can help you enjoy backcountry adventure

Practical, science-based information presented in an easy-to-understand, useful way
Food plays a vital role in our lives, especially when we take to the backcountry. Learn what gives you energy, builds strength, keep...

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