When you are eating out at restaurants, do not add salt to any of your meals. It is common for restaurants to use more salt than you would use at home, so adding more salt to your food will put your food in a very bad sodium range.
Be wise when shopping for whole-grain foodstuffs. Just because a food looks healthy does not mean it is healthy. Don't trust the name of a food either. Always go over the list of ingredients and the table of nutritional values.