What is the key ingredient difference between Plexus Lean Whey, Plexus Lean Vegan and Plexus Lean Vegetarian formulas? Plexus Lean Whey utilizes whey protein, Plexus Lean Vegetarian utilizes vegetarian protein and Plexus Lean Vegan utilizes vegan protein. The difference between the Vegetarian and Vegan formulas is the Vitamin D2. Can children under the age of 18 use Plexus Lean Whey? Lean Whey is not recommended for use by children under 18 because the product was formulated to meet the nutritional needs of adults. When and how is the best way to use Lean Whey? Use Plexus Lean Whey as a meal replacement twice a day for weight loss^, once a day to maintain a healthy weight, or whenever as a snack. How should Lean Whey be mixed? Add 2 level scoops to 8oz of nonfat milk or water & shake quickly for 10 seconds. Use a blender to add ice and/or fruit if desired. You can also use 1 level scoop with 4-6 fl oz of nonfat milk or water for a snack. Can Plexus Lean Whey be mixed with other beverages? It's best served with cold, nonfat milk. However, feel free to substitute any other animal or plant milk. Note this affects the caloric value of the drink. Does Lean Whey work with other Plexus products? Absolutely. Plexus Lean Whey is a great addition to any Plexus regimen. It's best used with the TriPlex Combo. The TriPlex is excellent for overall health and helps users lose weight^ while maintaining muscle. Where can I find the lot number and expiration date? The lot number is a 6 digit number found on the back of the Plexus Lean Whey bag printed on the middle of the zipper seal at the top of the bag. The expiration date of the product will be under the lot number. Can Plexus products be stored in a refrigerator or a freezer? Yes, Plexus products can be safely stored in a refrigerator or freezer. However, keep in mind that storage in a refrigerator or freezer may cause clumping or changes in texture. If freezing a product, avoid excessive thawing and re-freezing.