Yams are a starchy vegetable, similar to sweet potatoes, but with a much lighter color flesh and a flavor that is typically not as sweet as sweet potatoes. (In the US, most products labeled as yams are actually sweet potatoes; true yams are difficult to find in US markets.) Yams are a good source of fiber (especially when eaten with the skin), which helps lower cholesterol, reduce risk of type 2 diabetes, stabilize mood, and keep you feeling full, thereby helping with weight loss. Yams are rich in potassium, a mineral that may help lower blood pressure and preserve bone health, and vitamin C, which participates in joi...

The main ingredient in yellow curry powder is turmeric, a spice with anti-inflammatory properties that may help prevent arthritis and protect against memory loss. In addition to being a main ingredient in curry sauces, yellow curry powder also adds interesting flavor to chicken and egg dishes.

Yellow squash is a type of summer squash similar to zucchini. Like other nonstarchy vegetables, yellow squash is rich in water and low in calories, making it a great choice for people who are trying to lose weight. It is also a good source of vitamin C, an antioxidant that keeps skin, hair, and teeth healthy and may help prevent arthritis.

Whole-milk yogurt is not the best choice for most people concerned with various health conditions, not to mention that it can impede weight-loss efforts due to its high calorie content. Whole-milk yogurt is high in saturated fat, which, when eaten in excess, increases the risk of cardiovascular disease and type 2 diabetes. It can also contribute to inflammation, which may increase the risk of arthritis, cataracts and macular degeneration, and memory loss. For overall health, choose nonfat (or low-fat) yogurt. Yogurt is a potential trigger for migraines, and some people with IBS are sensitive to dairy and may experienc...