The latest Dietary Guidelines no longer give a daily cap for dietary cholesterol (previously it was 300 milligrams), because there’s abundant evidence that dietary cholesterol (found only in animal foods) has little if any effect on most people's blood cholesterol. Rather, saturated fats raise LDL (“bad”) cholesterol more than dietary cholesterol does. But don't go overboard with cholesterol-rich foods, since many of them are also high in saturated fats. And if you have cardiovascular disease or diabetes, ask your doctor if you should limit dietary cholesterol.
Vending machines in particular have come under fire as being avenues of entry into schools for junk food promoters. However, there is little in the way of regulation and it is difficult for most people to properly analyze the real merits of a company referring to itself as "healthy." Recently, the Committee of Advertising Practice in the United Kingdom launched a proposal to limit media advertising for food and soft drink products high in fat, salt or sugar. The British Heart Foundation released its own government-funded advertisements, labeled "Food4Thought", which were targeted at children and adults to discourage unhealthy habits of consuming junk food.
The American Heart Association, World Cancer Research Fund, and American Institute for Cancer Research recommend a diet that consists mostly of unprocessed plant foods, with emphasis a wide range of whole grains, legumes, and non-starchy vegetables and fruits. This healthy diet is full of a wide range of various non-starchy vegetables and fruits, that provide different colors including red, green, yellow, white, purple, and orange. They note that tomato cooked with oil, allium vegetables like garlic, and cruciferous vegetables like cauliflower, provide some protection against cancer. This healthy diet is low in energy density, which may protect against weight gain and associated diseases. Finally, limiting consumption of sugary drinks, limiting energy rich foods, including “fast foods” and red meat, and avoiding processed meats improves health and longevity. Overall, researchers and medical policy conclude that this healthy diet can reduce the risk of chronic disease and cancer.
Let's be real: Some nights, you need to eat out or order in. Check online menus before going out to prevent impromptu (read: poor) choices. A California roll with brown rice has only 26g carbs—that's half the carbs and triple the fiber in a white rice tempura (battered = carbs) roll. For more healthy ideas, read 5 Dishes You Should Avoid (and the 5 You Should Order) at Sushi Restaurants.