The most obvious difference between olive and sunflower oil is the source. Olive oil is derived from pressing olives, while sunflower oil comes from sunflower seeds. While each type of oil is plant-based and their calories are similar -- about 120 calories per tablespoon -- they do have several nutritional differences.

Plain gelatin is a clear, unflavored gelatin suitable for use in your diet. You may use it to replace flavored gelatins, to thicken sauces or to make food molds such as aspic. Any recipe that calls for a thicker texture, including cake icing and marshmallows, may benefit from the addition of plain gelatin.

Gaining a few pounds when you're underweight benefits your health -- a lower-than-healthy body weight can make it hard to recover from illness, affect fertility and pregnancy. and cause complications if you need to undergo surgery.

If you can't drink cow's milk or you want an alternative, you might enjoy almond milk. Almond milk is made by pressing the juice from the nuts, and Silk is one widely available brand of the beverage. The Silk brand offers several varieties of almond milk, each with its own nutritional profile.

With its bright, fresh scent and pale color, lemon juice is often added to meals, juices and even plain water to add a bit of zest and liveliness to the palate. While lemon juice has a range of health benefits, it is also associated with some mild to moderate side effects that may cause you to limit your consumption.

Though it looks like a tomato of a different color, a tomatillo is actually more closely related to gooseberries and ground cherries, according to Washington State University. Though cooking tomatillos brings out a rich flavor, tomatillos can also be eaten raw.

A combination of red wine, fruit juice and fresh fruit, traditional sangria has certain health benefits, as well as a couple of nutritional drawbacks.

Miller Lite claims to be "the original lite beer." A lite or light beer aims to provide a refreshing beer with fewer calories than a regular beer. A pale lager, Miller Lite is even lighter nutritionally than most domestic lite beers, since it is lower in calories and carbohydrates.

Eating couscous provides you with essential nutrients to help maintain your overall health. This whole-grain food is native to northern Africa and is commonly found in Middle Eastern cuisine. Couscous is small pasta made of semolina, a form of wheat.

It's always a good time for a cup of tea. In the morning, black tea can provide the boost of energy you need to start your day, while in the evening, herbal tea can serve as a relaxing drink before bed.

Many foods contain their own defenses against viruses, fungi and bacteria. By consuming these foods, humans can also benefit from the plants' natural defenses. Foods that have been studied for their potency against a wide variety of pathogens include garlic, tea leaves, coconut and ginger.

Temporal arteritis, also known as giant cell arteritis, is a condition that involves blood vessel inflammation and damage. According to the University of Maryland Medical Center, this condition may affect the medium or large arteries that supply blood to your head, neck, upper body and arms.