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A pouch of The Lean Protein - a nutritional supplement developed by Innermost
A pouch of The Lean Protein - a nutritional supplement developed by Innermost
A pouch of The Lean Protein - a nutritional supplement developed by Innermost
Ambar Driscoll holding a pouch of The Lean Protein - a nutritional supplement developed by Innermost
Pouches of The Lean Protein - a nutritional supplement developed by Innermost
The Lean Protein powder - a nutritional supplement developed by Innermost

The Lean Protein

Get lean the right way.

Our protein blends won’t make you bulky. This one was actually crafted to help you slim-down. We want to make it easier to reach your ideal weight so we packed it with ingredients to support fat metabolisation. Formulated to encourage healthy fat-loss, reduce cravings, and support muscle growth and repair. A smarter way to lean-up.

The Lean Protein

Smooth chocolate flavour | 600g

The Lean Protein

Creamy vanilla flavour | 600g

£29.95 £29.95

Product Highlights

Active Ingredients

For every serving of The Lean Protein: Protein (29g), Inulin (1g), Acetyl L-Carnitine (750mg), Pomegranates (500mg), Yerba Mate (500mg), Bilberries (250mg).

Scroll down to learn about these ingredients and how they benefit you.

Per: 40g 100g
Energy 626 kJ 1,565 kJ
Calories 148 kcal 370 kcal
Protein 29g 74g
Carbohydrates 4.5g 11.1g
of which sugars 1.1g 2.7g
Fats 1.2g 3.0g
of which saturates 0.4g 1.0g
Dietary fibre 1.5g 3.8g
Sodium 0.08g 0.20g

Allergens: Milk (whey). 
Other ingredients: Natural flavours only. Guar gum, which is a GMO-free, gluten-free, natural fibre that comes from the guar bean to give our shakes a creamy texture. We use sunflower lecithin instead of soy lecithin, which is the only kind of lecithin that can be obtained raw and chemical-free using a cold press system similar to that used with olive oil. We use sucralose as it is the most widely tested low-calorie sweetener and approved by all major food standard agencies in the world.

How And When To Use

A must-have post-workout refuel to be taken ideally within 45 minutes of exercise or as a nutritious drink to help meet your daily nutrient needs. Best served cold.

Directions: Add up to 40g (4 scoops) to 250-350ml of water or milk and shake. Adjust amount of liquid for your desired level of sweetness and thickness. Can also be used to make smoothies and baked into healthy snacks.

Works Well With: The Define Booster to further assist with metabolising fat and supporting energy levels.

Need some help getting leaner?

So did we.

That’s why we created The Lean Protein. Just like you, we were sick of being marketed products that told us to stop eating, or simply didn’t work. A recent survey found that almost half of UK adults had tried to lose weight in the last year, so we knew that this was one of the biggest health concerns people had.

And if you’ve found yourself in this camp, we’re with you. We acknowledge that it’s totally ok to want to lose fat, albeit in a healthy, controlled way. No fad diets, no restrictions, no nonsense. Formulated by leading nutritionists, The Lean Protein is the perfect partner to help you get lean, tone up, and lose body fat. Because your goals are achievable.

Nutrient heavy and evidence-based products, rather than pure fluff. The Lean Protein features inulin, a substance linked to lower levels of visceral fat (the killer kind...), along with high quality protein to aid muscle repair and recovery, yerba mate for energy, and pomegranate and bilberries for an antioxidant rush. Basically, a research based post-workout beverage of dreams.

Stop those cravings in their tracks

Research-backed natural ingredients, nootropics and adaptogens. Scientifically proven to reduce cravings, encourage sustainable fat-loss, support muscle repair and speed up recovery. It's what inside that matters.

Per Serving:

Protein (29g): The building block of bones, muscles, hair, skin, and nails, this blend of dairy-based whey concentrate and isolate contains all the essential amino acids your body needs for repair, recovery and muscle development.

Inulin (1g): Advanced research in weight management emphasises recognising the importance of our gut as a metabolic organ. Inulin is a prebiotic fibre that encourages growth of good gut bacteria linked to lower levels of fat.

Acetyl L-Carnitine (750mg): A non-essential amino acid necessary for transporting fat to the body’s power-generating mitochondria. Without it, we wouldn’t be able to use fat effectively as a source of energy, which could result in the body having to break down muscle instead.

Pomegranates (500mg): This fruit has sparked interest in recent years largely due to its punicalagin and ellagic acid content. These compounds are retained in the gut where they encourage the growth of good gut bacteria linked to lower levels of fat.

Yerba Mate (500mg): Dried leaves of an evergreen holly tree native to South America. An incredibly high antioxidant content and has been shown to have possible effects in the area of weight management, which could be due to it helping delay intestinal absorption of dietary fat.

Bilberries (250mg): Belonging to a class of natural bioactives with wide-reaching health benefits, including improving cardiovascular health, glucose control and inflammation. These dark berries are rich in antioxidants and resveratrol, which are seeing increased use for their purported anti-aging properties.

Be the best version of you

We use cutting-edge science and research, as well as best practices from Ayurvedic and Asian medicine, to craft the smartest nutrition products possible that give you the results you told us you're looking for. Free from additives, artificial colours, fillers and GMO nasties. Because everyone deserves to live life better.

When should I use the product?

Ideally, post-workout to start the repair and recovery process. However, you can also use it to make a quick nutritious shake or smoothie anytime of the day, or in your porridge or oatmeal to top up your daily protein intake. The protein blend is also versatile enough to bake into high-protein snacks.

How long will the product last?

This depends on how often you use the product. Typically a pouch of our protein blends will last around a month or so. If you're using it every day and also adding it to porridge and smoothies, you may run out sooner. We have a subscription option, which saves you money and ensures you'll never run out.

What flavours can I choose from?

All our protein blends come in either creamy vanilla or smooth chocolate. We spent months perfecting the flavours to give you what we believe are the best tasting protein blends you'll have ever tried. We only use natural flavours and you can adjust the sweetness down or up by using more or less liquid.

Have tried a lot of different proteins and this is simply my favourite. It tastes excellent and seems to go well with anything. It’s excellent all round, even with water. I've made this part of my routine each day and have one after every workout. Awesome stuff!

Daniel T, Verified Customer

Customer Reviews

Based on 129 reviews
Best tasting proteins ever

I’ve been training all my adult life and I’ve been taking protein for the most of this period, but this are the first proteins that taste amazing. I often crave them as a snack.

New !

First time I have used the lean protein excellent taste nicer than others I have had only just started to use it so can’t as yet comment on results but it seems to be helping me ! Certainly fills me up after my work out .


Tastes like a vanilla caramel combination to me. I use 2 scoops with light soy milk and it curbs my appetite. Yum!

Love it!

Super yummy and keeps me full after a workout for ages.

Delicious taste!

I really like the smooth taste and this product actually tastes like vanilla, unlike other brands I've tried! I will definitely be purchasing this again!

The best to slim down combined with exercice

Everything is awesome with this one and I've tried a lot. My Australian friend recommended it to me and since then I never found better composition, taste and effect on the body. Also I train 4 times a week and use it sometimes in the evening as a meal replacement when I had a rich meal and I can see the impact on my body. More energy, less hungry and less fat. I recommend it to all my friends as a quick post-pandemic fitness trick. I usually prefer chocolate over vanilla but in this brand the vanilla is delicious !