You don't have to make the switch at once.

You won't just wake up one morning magically vegan. It takes work, so it should also take time, Henderson says. "Start by adding more plant-based foods to your diet, while at the same time cutting back on animal products, especially those that are non-organic, and more importantly processed, refined foods. Making gradual changes and assessing how you are feeling along the way is key," she says.