First let me start with each shake's description and next I will compare both types of shakes to outline their greatest advantages (pros) and disadvantages (cons), if there are any.

Meal replacement shakes and meal replacement diet plans

Meal replacement shakes together with the other meal replacements - drinks, bars, soups, puddings and other snacks are designed to replace one or two of your daily meals.

Meal replacement shakes are rich in proteins and specially formulated for fat-reduction, weight loss, and weight maintenance. Each serving contains between 100 and 200 calories, and 15 to 30 grams of proteins.

All meal replacements are either ready, or very easy to prepare – just mix the meal replacement shakes powder into a large cup, shaker or blender with water, skim milk or juice, and drink the mixture instead or your regular meal.

There are many meal replacement diet plans designed to help you lose weight quickly, easily and safely. They usually include menu, shopping list and diet plan, which you should follow in order to obtain maximum weight loss results from taking the meal replacements.

Protein diet shakes and protein shake diets

Protein diet shakes have 100 or fewer calories per serving and they are designed to supply you with high quality proteins and provide you with the perfect combination of proteins, fats and carbohydrates to make you feel great while dieting and losing weight.

Protein diet shakes are supplements to your regular diet plan. They are very rich in high quality proteins - about 12 grams per serving.

When you consume your protein diet shakes in between your meals, your body gets everything you need – balanced portions of proteins, fats, carbs, fibers, vitamins and minerals in less than 100 calories, so you are not so hungry when it comes to your next meal.

You just blend the protein diet shake powder with water or skim milk into a large cup, blender or shaker cup, and you've got a homemade protein shake in less than 5 minutes.

There are many protein shake diets designed to help you lose healthily using protein diet shakes and other protein drinks and snacks.

Which diet plan is better?

It depends on if you want to lose weight faster and easier (meal replacement diet plans), or gradually and more healthy eating habits educational (protein shake diets).

Each diet plan has its own pros and cons:

Meal replacements and protein diet shakes pros

What I think is that the high protein diet shakes are good for everybody who wants to lose weight, because they supplement your regular diet plan and keep you from overeating and gaining weight.

Meal replacement shakes can be taken instead of a whole meal and are great for everyone who wants to lose weight fast and easy.

Both meal replacement and protein diet shakes are rich in proteins, great tasting and supply your body with all nutrients you need in fewer calories and you definitely don't starve.

Both protein diet and meal replacement shakes are very easy to buy, store, prepare and consume – they save you plenty of time for shopping, cooking and chewing.

They are not expensive and if you calculate all the money and time spent on shopping for food and preparing it – it turns out that the diet plans with meal replacement and protein diet shakes are quite a good bargain.

But that's not all; they are also very healthy and nutritious, even more than your ordinary meals. Everything is portion controlled, so you can't overeat or starve.

With protein diet shakes you learn how to eat less and how to make smarter food choices for life.

Meal replacements and protein diet shakes cons

The first and main disadvantage is that you can't stay on meal replacement shakes for life.

These types of diet plans usually take between 1 and 12 weeks, so you need a maintain period of couple of weeks to learn how to eat after using meal replacement shakes.

You might miss chewing while on meal replacement shakes and only one ordinary meal a day.

Using protein diet shakes for weight loss may take longer to reach your goal.