Quick answer

Choose a ready-to-drink shake like Lean Body if you want zero-prep, portable protein, or a whey powder like Premier Protein if you prefer customizing your shake and saving money per serving.

Convenience vs. control

Ready-to-drink (RTD) shakes are the ultimate grab-and-go option. They come pre-mixed, require no shaker or water, and are shelf-stable until opened. This makes them ideal for travel, busy mornings, or post-workout refueling when you don't want to mix anything.

Powdered protein gives you more control over serving size, mix-in ingredients, and cost. You can adjust the thickness, add fruit or greens, and use it in recipes like pancakes or oatmeal. The trade-off is you need a shaker, water or milk, and a few minutes to prepare.

Nutritional profile differences

Lean Body RTD delivers 40 grams of protein from a whey blend with zero sugar and 22 vitamins and minerals. It's a complete meal-like option in a single can. Premier Protein powder provides 30 grams of 100% whey protein with no added sugar and is keto-friendly, but you have to mix it yourself.

The RTD format locks in a specific nutrient profile — you can't easily change the protein amount or add ingredients. With powder, you can double a serving or blend it with milk for extra calories and creaminess.

Trade-offs at a glance

  • Convenience: RTD: open and drink. Powder: requires shaker, liquid, and mixing time.
  • Protein per serving: Lean Body RTD: 40g. Premier Protein powder: 30g (adjustable by scoop size). If you need maximum protein with zero effort, the RTD wins. If you want flexibility, powder lets you customize.
  • Cost per serving: RTD: higher per-serving price due to packaging and convenience. Powder: lower per-serving cost, especially when bought in bulk. Budget-conscious users will save money with powder; time-pressed users will find the RTD worth the premium.
  • Dietary fit: Both are gluten-free and low in sugar. Lean Body RTD includes 22 vitamins and minerals; Premier Protein powder is keto-friendly with no added sugar. Choose based on whether you want a complete nutrient boost (RTD) or a flexible, keto-friendly base (powder).

Product facts

Which one fits you?

Best for

  • People who need grab-and-go protein with zero prep — travelers, busy professionals, or post-workout refueling on the move
  • Those who want a complete nutrient profile with vitamins and minerals in one serving

Not for

  • Budget shoppers who want the lowest cost per gram of protein
  • Anyone who likes to customize shake thickness, add-ins, or use protein in recipes