menopause+running+low carb eating mentor

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My husbands Doctor told him yesterday to follow a Low Carb Diet. I don't eat the greatest and have decided to do the diet with him. I am 51 years old and going through menopause. I am a runner that has ran several half marathons and have just signed up for my first Marathon for the spring of 2014. I am 5'3" and 142 pounds. I would run better and have more stamina if I were to drop about 20 pounds. I am interested in connecting with someone that is (or has) a similar situation (age+menopause+low carbing+running). If that is you I would appreciate you mentoring me.