Have you ever eaten something and noticed that you could feel mucus forming at the back of your throat? And the next thing you knew, you were “ahem”-ing and coughing to clear your throat? Perhaps you get gas, bloating or headaches after eating certain foods. Not everyone has the same signs or level of sensitivity, but over time, eating foods that you are sensitive to can lead to a whole host of problems and one of them is difficulty losing weight. Many people might not realize that food sensitivities could be the reason for weight gain or the culprit behind losing the battle of the bulge, but Dr. John Mansfield, a pioneer in the field of allergy and nutrition, states that if the body is aggravated by a food it can cause sensitivity and weight gain. In his book, The Six Secrets of Successful Weight Loss , Dr. Mansfield declares that food sensitivities are “by far the commonest single …