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Optimum Nutrition, Gold Standard 100% Whey Protein Powder, 5 lb

Prices as of September 26, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at Macy's price tracker

14-day low
$114.99
Sep 13 · Macy's
Best price
$114.99
−0% vs high
14-day high
$114.99
All stores
$115$115$115
Sep 13Sep 26
  • Macy's
Lowest in 14 days: $114.99 at Macy's. Highest: $114.99. Current best is 0% below the 14-day high.

What buyers say

AI summary · 276 reviews

A reliable, high-protein powder that delivers a smooth, ice cream-like flavor and mixes easily for most users, though some buyers note an overly sweet taste and gritty texture from added thickeners. A minority find the new formula less satisfying than past versions.

Liked

  • Smooth, creamy texture
  • Clean, mild vanilla flavor
  • High protein content per serving

Complaints

  • Overly sweet artificial taste
  • Gritty or slimy texture from thickeners

Generated by AI from real customer reviews at Macy's — may miss nuance. Summarized Sep 2026.

About this product

Optimum Nutrition Gold Standard 100% Whey Protein Powder is a high-protein dietary supplement formulated with pure whey protein isolate. This instantized powder provides 24 grams of blended protein per serving, including whey protein isolate, concentrate, and peptides. It contains over 5 grams of naturally occurring branched-chain amino acids (BCAAs) to support lean muscle development. Each serving has minimal carbohydrates (3-4 g), low sugar (1-3 g), and low fat (1-1.5 g). The product is gluten-free and made in the USA.

  • 24g protein per serving
  • whey protein isolate
  • gluten-free
  • low carb and low fat
  • naturally occurring BCAAs
  • made in USA

Based on 276 reviews at Macy's

Read all 276 reviews on Macy's

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Optimum Nutrition, Gold Standard 100% Whey — Price History