1 Phospholipids consist of a glycerol molecule, two fatty acids, and a phosphate group that is modified by an alcohol. 2  The phosphate group is the negatively-charged polar head, which is hydrophilic.  The fatty acid chains are the uncharged, nonpolar tails, which are hydrophobic.
There are 150 calories in a 1 cookie serving of McDonald's Oatmeal Raisin Cookie. Calorie breakdown: 36% fat, 59% carbs, 5% protein.
One packet of instant oatmeal provides about 150 calories. Check the ingredient list to make sure the only ingredient is oats. Watch out for flavored oatmeal that contains added sugars, which are a source of empty calories.