Due to the increase in hormonal levels that birth control pills cause, it is normal to experience irregular periods and spotting for a few weeks after starting the pill. And for women taking progestin-only pills, it is not uncommon for them to completely miss their periods.
What to Eat Before Exercise. Because glucose is the preferred energy source for most exercise, a pre-exercise meal should include foods that are high in carbohydrates and easy to digest. This include foods such as pasta, fruits, breads, energy bars and drinks. Also see.
In the hour before a swim, snacks should focus on smaller, easily absorbed, high GI snacks and contain limited amounts of fibre. Now you know what to eat before your swim, get the rest of your training nutrition right: What to eat during your swim. What to eat after your swim. What to eat before your run.