Free Shipping on All Orders $75 Or More! Ends Soon.

Your Trusted Brand for Over 35 Years

Whey Protein Isolate (Natural Chocolate Flavor)

437 grams (0.96 lb. or 15.4 oz.)
Item# 01743

Your Price:
$22.50 Save 25%

Whey Protein Isolate (Natural Chocolate Flavor)

Supports a healthy immune function*

437 grams (0.96 lb. or 15.4 oz.)
Item# 01743

Retail Price: $30.00

Your Price: $22.50 Save 25%

Add to Wish Lists


  • Whey Protein Isolate (Natural Chocolate Flavor)
  • 437 grams (0.96 lb. or 15.4 oz.)
  • Item Catalog Number: 01743

Scientists have known for years that certain biological components of whey protein (including lactoferrin, beta-lactoglobulin, alpha-lactalbumin, glycomacropeptide, and immunoglobulins) have a beneficial impact on the immune system. Life Extension developed a specially designed whey protein, using proprietary production methodology, that has been shown to support healthy immune function, protect against free radical attack, and help maintain lean muscle mass.1-5

Using a low temperature microfiltration technique, it is possible to produce a high-quality, 98% undenatured whey protein isolate that acts as a powerful immune stimulant and retains all the important sub-fractions, such as lactoferrin, a strong antioxidant with immune-stimulating properties.6-13

Typical Amino Acid Profile
(Approximate g per serving):
Alanine 1.01 g
Arginine 0.35 g
Aspartic Acid 1.96 g
Cysteine 0.41 g
Glutamic Acid 2.68 g
Glycine 0.33 g
Histidine 0.21 g
Isoleucine 1.17 g
Leucine 1.75 g
Lysine 1.52 g
Methionine 0.35 g
Phenylalanine 0.51 g
Proline 1.09 g
Serine 0.82 g
Threonine 1.32 g
Tryptophan 0.16 g
Tyrosine 0.43 g
Valine 1.05 g


  1. Altern Med Rev. 2004 Jun;9(2):136-156.
  2. J Nutr Biochem. 2003 May;14(5):251-8.
  3. Toxicol In Vitro. 2003 Feb;17(1):27-33.
  4. Br J Nutr. 2011 May;105(10):1465-70. 
  5. Int J Sport Nutr Exerc Metab. 2006 Oct;16(5):494-509.
  6. Curr Pharm Des. 2009;15(17):1956-73.
  7. Postepy Hig Med Dosw (Online). 2007;61:261-7.
  8. Arch Immunol Ther Exp. 1998;46(4):231-40.
  9. Adv Exp Med Biol. 1998;443:261-5.
  10. J Gastroenterol. 2010 Nov;45(11):1121-8.
  11. J Biol Chem. 2012 Jul 6;287(28):23527-36. 
  12. Biochim Biophys Acta. 2012 Mar;1820(3):226-36.
  13. Arch Immunol Ther Exp (Warsz). 2001;49(4):325-33.


Supplement Facts

Serving Size 1 scoop (approx. 22 g)

Servings Per Container about 20

Amount Per Serving




< 5 mg


40 mg


75 mg

Total Carbohydrate

< 0.5 g


17 g


83 mg


42 mg


15 mg

Ingredients: Provon® 292 rBST free whey protein isolate, cocoa, maltodextrin, sunflower oil powder, guar gum, xanthan gum, rice starch, soy lecithin, stevia extract, natural chocolate flavor, modified food starch.

Contains milk and soybeans.

Provon® is a registered trademark of Glanbia Nutritionals, Inc.

Dosage and Use
  • Mix one (1) scoop in approximately 4 to 8 ounces of water, milk or juice (to taste) daily, or as recommended by a healthcare practitioner.
  • This product mixes best in room temperature liquid.
  • This product contains whey protein isolate from cows not treated with growth hormone (rBST).
  • The whey protein isolate is made using a process known as Cross Flow Microfiltration, which produces an isolate that is 90% protein, 98% of it in the bioavailable undenatured form, and retains all important subfractions in their natural ratios.
  • Store tightly closed in a cool, dry place.


Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.