"A 56 gram (approximately 2 ounce) serving of original Spam provides 7 grams of protein, 2 grams of carbohydrates, 15 grams of fat (23% US Daily Value) including 6 grams of saturated fat (28% US Daily Value), and over 170 calories. A serving contains nearly a third of the recommended daily intake of sodium (salt). Spam provides very little in terms of vitamins and minerals (0% vitamin A, 1% vitamin C, 1% calcium, 3% iron). It has been listed as a food that is a poor choice for weight loss (or weight gain) and optimum health and as a food that "is high in saturated fat and sodium"

http://en.wikipedia.org/wiki/Spam_musubi