Some days, eating properly just does not happen. Breakfast gets skipped on the way out the door, lunch turns into whatever is closest, and by evening you are either starving, haven't chosen the healthiest options, or you've lost your appetite altogether. If any of that sounds familiar, you are not the only one, and the fix does not need to be complicated.

Diet Pro has been Nutritional Performance Labs' (NPL) answer to exactly that for years, a protein shake for weight loss that takes the effort and time out of making a nutritious meal or snack. This isn't to say you shouldn't focus on whole, nutrient-dense meals throughout the day. But if you're not a big breakfast person, struggling to find a high-protein snack, battling with large meals, or trying to manage sugar cravings and habit snacking, Diet Pro is a great protein option to add to your routine.

Why is Diet Pro one of our best sellers? Take a look at why it has stayed a favourite, and how it can fit into your day.

A Formula You Can Actually See

Diet Pro is trusted for the same reason every NPL product is, nothing on the label is left out. The formula hasn't changed over the years because it hasn't needed to, it was created right the first time and has kept delivering ever since.

Every ingredient is listed in full, not tucked behind a proprietary blend, part of our Full Label Transparency standard, so you always know exactly what you're getting and how much of it. Reaching for the same product again and again comes down to trust, knowing it does what the label says, and that's a priority for us.

What Goes Into Every Serving

Diet Pro is carefully formulated as a protein shake for weight loss that gives you enough to properly replace a meal, without extra calories you don't need.

• High-Protein Blend: soy, whey and pea protein making up 25.3g of protein per serving 
• Collagen: 1500mg of hydrolysed collagen per serving 
• Weight-Management Actives: Garcinia Cambogia, L-carnitine and green tea extract
• Digestive Enzymes: added to make the shake easier on your stomach
• Vitamins: 12 essential vitamins, including B12, folic acid and vitamin D

All of this comes in at 171 calories per serving, under 200 calories, but you can easily blend in something like a banana or a spoon of yoghurt if you need a bit more to get you through the day.

Less Time in the Kitchen

Nobody plans to skip meals, it just happens when the day gets away from you. Diet Pro mixes in seconds, two rounded scoops into 200ml of cold water or fat-free milk, so you can swap it in for a meal or snack whenever cooking or a proper sit-down meal is not realistic. 

There's no working out calories or portions like you would with a home-cooked meal, and no separate vitamins to remember either, since a full profile is already mixed into every scoop. It's portable too, so you can shake it up and take it with you, whatever your day looks like.

Flavours Worth Looking Forward To

Our flavours are chosen intentionally. Taking a shake shouldn't feel like a chore, so Diet Pro is made to taste like a treat, not a task, and that also helps manage sweet cravings along the way.

Choose from Diet Pro Flavours: 

• Vanilla Doughnut 
• Coffee Mocha 
• Raspberry Greek Yoghurt 
• Chocnut Sundae

Think of these flavours as a healthier dessert, a sweet treat that fits in with your goals instead of making you feel out of control on your weight loss journey.

Diet Pro and GLP-1 Support

If you're on a GLP-1 medication, muscle loss is one of the more common concerns that comes with losing weight this way, especially once a lower appetite makes it harder to eat properly through the day. Protein is your best defence against that, and it needs to keep coming from your regular meals and nutrient-dense foods, not just with a high-protein shake.

Diet Pro is an easy way to top up your protein on the days appetite is low and a full meal feels like too much, without needing to think it through. As with any change to your routine while on prescription medication, check with your doctor or a registered dietitian about what fits your specific plan.

Why Choose Diet Pro?

People keep choosing Diet Pro as their protein shake for weight loss, and for the same reasons, a formula with the right things in it to help your hard work show, flavours that feel like a treat rather than a chore, and the convenience to fit a busy schedule. It ticks every box for consistent use, whether that's a busy week, a general weight management goal, or extra protein support alongside GLP-1 medication.

Explore Diet Pro and see why it has stayed a best-seller for so long.

Frequently Asked Questions

How do I use Diet Pro?

Mix two rounded scoops (45g) into 200ml of cold water or fat-free milk and shake. Have one to three servings a day, using it to replace a meal or snack whenever you want to stay full and on track.

What flavours does Diet Pro come in?

Diet Pro comes in Vanilla Doughnut, Coffee Mocha, Raspberry Greek Yoghurt and Chocnut Sundae, in 908g or 1.8kg tubs.

Can I use Diet Pro while on GLP-1 medication?

Many people do, since its high protein and low-calorie count can help you reach your daily protein target when appetite is reduced. Speak to your doctor or a registered dietitian first to check it fits your specific treatment plan.