“Whey Breakfast Shake 100 g” is likely a protein shake recipe or a high-protein meal plan containing 100 grams of protein, rather than a specific pre-packaged commercial product in a 100g size. Consuming 100 grams of protein in a single shake may be excessive for most individuals, though it can be part of a high-protein diet plan. 

About the Concept
Recipe, Not Product: The quantity (100g of protein) generally refers to a substantial, protein-rich breakfast created using various ingredients like protein powder, Greek yogurt, eggs, and milk, often found in fitness or nutrition guides and online recipes.
High Protein Content: Achieving 100g of protein in a single meal or shake is a significant amount, often targeted by athletes or bodybuilders with very high daily protein requirements. For reference, a typical scoop of commercial whey protein powder contains around 24-30g of protein.
Purpose: A high-protein breakfast helps kick-start metabolism, provides sustained energy, increases satiety (feeling of fullness), and supports muscle building and recovery, especially when combined with exercise. 

Potential Ingredients
A homemade “100g Whey Breakfast Shake” might include a combination of the following:
Whey Protein Powder: Multiple scoops of a high-quality brand like Optimum Nutrition Gold Standard 100% Whey.
Dairy Products: Greek yogurt or cottage cheese can add significant protein, along with milk or a milk alternative as a base.
Other Additions: Ingredients like a banana, berries, oats, nut butter, or spinach are often blended in to add carbohydrates, fiber, vitamins, and healthy fats to make it a more complete meal