He is seen by three physicians (a cardiologist, a gastroenterologist, and a general practitioner), as well as a nutritionist and a personal trainer. All of the health professionals predict the "McDiet" will have unwelcome effects on his body, but none expected anything too drastic, one citing the human body as being "extremely adaptable". Prior to the experiment, Spurlock ate a varied diet but always had vegan evening meals to accommodate his girlfriend, Alexandra, a vegan chef. At the beginning of the experiment, Spurlock, who stood tall, had a body weight of . Spurlock followed specific rules governing his eating habits:  On February 1, Spurlock starts the month with breakfast near his home in Manhattan, where there is an average of four McDonald's locations (and 66,950 residents, with twice as many commuters) per square mile (2.6 km²). He aims to keep the distances he walks in line with the 5,000 steps (approximately two miles) walked per day by the average American. Day 2 brings Spurlock's first (of nine) Super Size meal, at the McDonald's on 34th Street and Tenth Avenue, which is a meal made of a Double Quarter Pounder with Cheese, Super Size French fries, and a 42-ounce Coca-Cola, which takes 22 minutes to eat. He experiences steadily increasing stomach discomfort during the process, and then vomits in the McDonald's parking lot. After five days Spurlock has gained (from 185.5 to about 195 pounds). It is not long before he finds himself experiencing depression, and he claims that his bouts of depression, lethargy, and headaches could be relieved by eating a McDonald's meal. His general practitioner describes him as being "addicted". At his second weigh-in, he had gained another , putting his weight at . By the end of the month he weighs about , an increase of about 24.5 pounds (about 11 kg). Because he could only eat McDonald's food for a month, Spurlock refused to take any medication at all. At one weigh-in Morgan lost 1 lb. from the previous weigh-in, and a nutritionist hypothesized that he had lost muscle mass, which weighs more than an identical volume of fat. At another weigh-in, a nutritionist said that he gained in 12 days. Spurlock's then-girlfriend, Alexandra Jamieson, attests to the fact that Spurlock lost much of his energy and sex drive during his experiment. It was not clear at the time whether or not Spurlock would be able to complete the full month of the high-fat, high-carbohydrate diet, and family and friends began to express concern.