The 5 Day Weight Loss Plan

The Science of Lasting Weight Loss

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What causes weight gain as we age?

Often you find that unexpectedly you’re putting on weight, especially around the waist even though you haven’t changed your diet or exercise routine. So what causes it?


Hormonal Changes

As oestrogen, which once kept fat distribution in check, declines, it leads your body to storing fat around the abdomen. Coupled with rising cortisol levels, more fat accumulates around your waist. The result? More belly fat.


Metabolism Changes

As you age, your metabolism naturally slows. This means the body burns fewer calories, which can lead to additional weight gain if calorie intake remains the same. 


Muscle Mass Changes

As you get older, you may notice a reduction in muscle mass. Since muscles burn more calories than fat, having less muscle can make it harder to maintain or lose weight.

Lasting Weight Loss, 5 Days Per Week

EVE BIOLOGY™ is a scientifically-backed meal replacement shake designed to restore the balance between your GUT, HORMONES, and METABOLISM for renewed vitality.

Clinically Proven Ingredients
Improve Memory and Focus
Improve Energy
Improve Sleep
Boost Mood
Reduce Anxiety and Stress
Ashwagandha KSM66
Gingko Biloba
Choose Your Plan

How Eve Works

Every ingredient in Eve Biology’s meal replacement shakes are selected for a purpose. Designed ultimately to help you feel your best because health starts on the inside.


    First our shakes flood the body with essential vitamins, nutrients, adaptogens, and gut boosting fibre, to provide a foundation for overall health and well-being.

  • 2. RESTORE
    2. RESTORE

    Our clinically proven prebiotic fibre increases gut microflora, crucial for improved nutrient absorption, digestion, metabolism and energy.


    A healthier gut combined with targeted nutrition aides hormonal regulation, supporting symptoms such as tiredness, anxiety, brain fog, as well as disrupted sleep and weight gain.

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Proven Weight Loss Results In Just 4 Weeks


Average Weight Loss


Average Waist Reduction

*4 Week Consumer Study May - June 2023. 60 Woman Aged Between 45 - 65

The 5 Day Plan


And Vitality

2 shakes per day. Swap breakfast and lunch for a shake, 5 days per week.

"I am absolutely delighted by my results it does make a difference in your sleeping pattern and I've lost 4llbs but better still my bmi has gone from 28 to 26.2 I didn't expect that I'm thrilled to bits."
- Wendy Hopkins

For Vitality

And To Maintain Your Weight

Take 1 shake per day. Swap breakfast or lunch for a shake, 3 - 5 days per week.

"Chocolate definitely my favourite. Rich. Not too sweet. I feel 5 years younger. Energy up. Weight down. Better focus. Can't recommend enough. A shake that does what it says on the tin."
- Vikki Black

How To Achieve A 1lb Fat Loss Per Week.

swap breakfast and Lunch for a shake 5 days per week.

According to the NHS, for effective weight loss, women are advised to aim for a daily intake of around 1300 calories, which can help shed about 1lb of fat per week. With Eve Biology, it's easy! Just replace your breakfast and lunch with our shake, totalling 418 calories. This way, you still have a comfortable 900 calories left for a fulfilling dinner and some snacks.

Breakfast Shake

209 Calories

Lunch Shake

209 Calories

Dinner & Snacks

900 Calories

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Why Eve Is Different

Using scientifically led ingredients, Eve Biology shakes help women control weight and restore their vitality. Control weight, boost energy and reduce anxiety, one shake at a time.

Diet Shakes
Replaces A Meal
Made With Adaptogens
No Artificial Ingredients
No Added Sugar
No Allergens
No Fillers
Formulated For Women
Boosts Gut Health
Choose your flavours

21 Day Guarantee

Shop with confidence. Order 2 or more pouches and if you're not fully satisfied, we'll refund the value of 1 pouch (£59) - no questions asked. Just reach out within 21 days of purchase to start your refund process.

Choose Your Flavours

Frequently Asked Questions

Why 5 Days Per Week?

We know from extensive consumer studies that taking weekends off to enjoy time with friends and family doesn't restrict your enjoyment. It makes the weight loss journey much more manageable and enjoyable.

I have IBS Can I take your meal replacement?

Our prebiotic fibre is a natural fructose–oligosaccharide, which has been shown to calm IBS symptoms. Every one is different however, and it's worth noting that responses maybe different from person to person.

What allergens should I be aware of?

You'll be glad to hear Eve Biology Meal Replacement Shakes have absolutely zero allergens.

No Soy
No Gluten
No Eggs
No Lupin
No Dairy
No Fish
No Molluscs
No Nuts
No Sesame
No Celery
No Celeriac
No Mustard
No Sulphur Dioxide
No Sulphites
No Soya

How do I know this product will help me to lose weight? 

The European Food Standards Authority meticulously defines criteria to distinguish genuine "Meal Replacements for Weight Control" from the myriad of alternatives.

For a product to truly merit this distinction, it must not only stay within a 250-calorie boundary but also adhere to specific nutritional compositions. These stringent standards ensure that substituting regular meals with these premium meal replacements actually helps you to lose weight and assist in maintaining your weight afterwards.

Choosing Eve Biology means you're not just getting a diet shake, you're getting a scientifically backed meal replacement for tangible weight loss results.