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  • From fad diets to new exercise trends, we're always looking for new ways to lose some weight.

  • And when we hear about something that helps, we think, "Well, why don't I just do more of that?"

  • Protein is critical for good health, and many high-protein diets claim to help lose weight.

  • I'm thin!

  • So, naturally, an all-protein diet should be great for weight-loss, right?

  • Let's find out.

  • This is your body on drinking only protein shakes for one month.

  • Awesome, I love protein.

  • Protein helps build, maintain, and repair our body tissue.

  • High-protein foods promote a feeling of fullness, reducing hunger cravings and overeating.

  • And protein shakes help with muscle recovery after a strenuous workout.

  • So, what would be the effect of an all-protein diet?

  • Would drinking only protein shakes even be good for you?

  • Just answer the damn questions!

  • To be clear, we are not talking about meal replacement drinks.

  • Protein shakes have fewer nutrients and minerals and are used for muscle recovery after a workout.

  • Okay, you've bought enough protein shake powder to last the month, and you have various flavors to keep it interesting.

  • Now, what are you going to mix it with, milk or water?

  • You could change it up for variety.

  • Just remember that milk will add even more protein to your diet.

  • And milk will give you some other nutrients, but you will become thirsty without water.

  • Milk was a bad choice.

  • All right, it's been a few days without any solid food, and you'll be craving something to sink your teeth into.

  • Sure, a big jucy hamburger would be nice, but don't forget why you're doing this.

  • After all, you've already lost a pound or two.

  • Now, more than a week has passed, and you've noticed you're not going to the bathroom as often.

  • Well, that's because you're not getting the essential nutrients for digestive health, and you also lack fiber.

  • You might be feeling a little backed up at this point.

  • All this protein.

  • You figured you'd have tons of energy, right?

  • Nope.

  • Without carbohydrates, your body will start to burn fat in a process known as "ketosis".

  • This is why the keto diet is so popular for weight loss.

  • But it also comes with some symptoms like headaches, nausea, and difficulty focusing.

  • Drastically cutting carbs can lead to fatigue, weakness, and dizziness, and you'll likely have less energy to be physically active.

  • Okay, more than three weeks in, and things aren't so bad, are they?

  • Well, your breath certainly is.

  • The lack of carbs combined with no solid food has given you really bad breath.

  • You're brushing your teeth way more often.

  • You're irritable, dehydrated, and suffering from headaches and indigestion.

  • Your body is lacking in essential vitamins, minerals, and Omega-3 fatty acids that optimize brain health.

  • And let's be honest, that peanut butter energy drink just isn't the same as a delicious peanut butter sandwich.

  • Okay, the high-protein, low-calorie intake over the last month has led to some weight loss.

  • But that doesn't mean that you're any healthier than you were when you started.

  • Once you start eating normally again, you'll likely gain most of that weight back.

  • And you're now at an increased risk of cardiovascular disease, blood vessel disorders, liver and kidney injuries, seizures, and even death.

  • Beware.

  • Protein drinks are unregulated and have some unsafe levels of contaminants like mercury, arsenic, and cadmium.

  • As with anything, moderation is key.

  • Consuming extra protein can make you stronger, but it's better to find healthier sources like beans, lentils, nuts, or meat.

  • These have essential vitamins and minerals that you won't find in any protein shake.

  • So, chances are, you've lost weight, but the long-term consequences likely outweigh the benefits.

  • Okay, after this challenge, it's time to treat yourself to a month of eating only chocolate.

  • Yes, finally, we're doing that one!

  • And we're going to do it on another episode of "Your body on...".

From fad diets to new exercise trends, we're always looking for new ways to lose some weight.

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