Build around a real day
Write down when you eat, where preparation is possible and what equipment is available. Choose one practical change, then review taste, convenience and cost after trying it. Keep ordinary foods and variety in the picture. A convenient format is useful only if it suits your circumstances; it does not guarantee a health or weight outcome.
Shake does not automatically mean meal replacement
Use the category and directions printed on the exact product. A protein shake may be designed to supplement food rather than replace a meal. Do not turn it into a meal replacement because an online recipe calls it one. If the pack is labelled as a meal replacement, follow its intended use and check how the prepared portion fits into the rest of your day.
Prepare the portion shown on the pack
Check the scoop size, number of scoops and recommended liquid on your own pack. Measure rather than estimating a heaped scoop. Add ingredients in the order recommended, close the shaker fully and mix as directed. Changing water to milk or adding fruit changes the prepared drink, including its energy and allergen content.