Science in Sport Overnight Protein
4.0/5 rating (6 votes)
Buy Online


1KG Tub RRP: £48.00



When you are in periods of increased training, Rest, repair and recover with SiS Overnight Protein, the night time drink for athletes and active people.

Containing all the essential ingredients needed by the body for rest, repair and recovery, SiS Overnight Protein optimises sleep whilst maintaining a healthy immune system and promoting health and well-being. Don't just sleep, sleep strong!

What can you expect to gain by using SiS Overnight Protein?

- Rest, repair and recovery
- Deeper, undisturbed sleep
- Stable weight or even weight loss
- Less muscle soreness
- Improved physical and mental performance.

Uses: Take 30-60 minutes prior to bed. For best results mix with 200-300ml cold water in a shaker bottle. SiS Overnight Protein can be
made into a hot drink.

SiS Overnight Protein contains specific ingredients, which all have a vital role to play in sleep rest, repair and recovery :

· High tryptophan proteins - tryptophan is the amino acid used by the body to make the sleep hormone melatonin.

· Slow release proteins - repair muscle tissue throughout the night, are key in the production of haemoglobin (which carries oxygen in the blood) and aid the absorption of vitamins and minerals.

· Magnesium - reduces night time muscle twitching and helps combat restless leg syndrome.

· Zinc - promotes a healthy immune system, helps maintain the correct hormone environment and optimises protein and carbohydrate metabolism.

· Vitamin B6 - essential for the efficient metabolism of protein.

· Prebiotics (for healthy stomach bacteria) - help the body absorb the above nutrients effectively.

SiS Overnight Protein is part of the protein kinetics system, which utilizes the absorption characteristics of different proteins in order to
maximize training gains.

The Protein Kinetics System was developed from studies using the latest research techniques that look beyond nitrogen balance and absolute nitrogen supply, to focus on absorption speed and protein turnover. Science in Sport has identified specific protein fragments that have different kinetic profiles, and incorporated them into this product.

Available in Chocolate and Vanilla.

Nutritional information per sachet:

Energy 560kj/132kcal
Protein 26g
Carbohydrate 5.9g
- of which sugars 3g
Fat 0.5g
- of which saturates 0g
Fibre 4.5g
Sodium 0.1g
Vitamin B6 3.8mg
Magnesium 324mg
Zinc 18mg

Overnight Protein Chocolate Flavour


Overnight Protein Ingredients:
Protein Blend (89%) (Milk Protein Isolate, Whey Protein Concentrate (Milk)), Fat Reduced Cocoa Powder, Natural Flavourings, Thickener (Xanthan Gum), Emulsifier (Soy Lecithin), Sweetener (Sucralose)


*All orders are now free postage (Mainland UK & Northern Ireland Only.  Please contact us for charges to other areas, overseas quotes welcome but cannot be processed on this site, please email us ( with your order.

Delivery Schedule: We will normally dispatch your order the same day. So you will normally receive your order within 3 business days. International orders are generally received in under 14 days.

If you need information or help with your order please call our sales team on 01268 491036
(office hours Mon - Friday) or send us an email.