Lipids are a diverse group of organic molecules and are present as fats and oils in foods. Fatty acids, such as omega-3s and omega-6s, are made of long chain fatty acids containing an ester group. Whether the fat is saturated or unsaturated depends on the structure.

With food and drug allergy rates increasing, it is important to recognize common signs of an allergic reaction. Lip swelling is one manifestation of an allergic reaction, which may be accompanied by swelling of the mouth, tongue and/or throat.

Over 15 million Americans have food allergies, according to the Food Allergy and Anaphylaxis Network. Certain foods are more likely to cause allergic reactions than others.

One in 18 children experience food allergies before age 3, according to pediatrician and author Dr. Alan Greene. Food allergies can trigger a variety of symptoms, including diarrhea.

If you’re taking sesame oil in supplement form and you develop adverse reactions, stop using the oil and call your doctor. Sesame seed allergies are on the rise in the United States and they have been included by Canada and the European Union as a highly allergic food.

A wheat-free diet is not the same as a gluten-free diet, but many of the same foods must be eliminated. Most wheat-free diets are put in place due to a wheat allergy. Wheat is one of the top eight allergens and is most often seen in children who eventually outgrow it.

Fasting is done for several reasons. You may be preparing for surgery, practicing a religious tradition or trying to better your health. Staying hydrated is most important while you are fasting. You can survive on clear liquids for only a few days, but you can safely consume pureed liquids for long periods of time.

The most effective way to build blood is to include iron, vitamin B-12 and folic acid-rich foods in your diet, according to "Acupuncture Today." Iron makes the main compound found in red blood cells, a protein called hemoglobin that carries oxygen in your blood. Vitamin B-12 and folic acid help produce red blood cells.

Almonds and other tree nuts are great sources of nutrients, but for some people they can also cause allergic reactions that range from a mild rash to severe breathing difficulties. Such reactions typically occur within minutes to 2 hours after eating.

True allergy to cocoa is rare. Most likely an allergy to or intolerance of other ingredients in chocolate or chocolate desserts, such as soy or dairy, is causing symptoms. You might also be sensitive to the natural chemicals in chocolate.

If you develop a skin rash after eating shrimp, you are most likely experiencing a type of food allergy. Shellfish allergies are one of the most common food allergies. Shrimp are a type of shellfish, a marine animal with a shell.

Kellogg’s Corn Flakes are not a good choice for someone on a gluten-free diet. In fact, Kellogg’s reported in the fall of 2010 that it does not make any cereal, waffle, cookie or cracker that is “suitable for consumers on a gluten-free diet.