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November 2026 · checked November 7, 2026
20 live offers, 16 codes, best code 35% off.
About Optimum Nutrition
Optimum Nutrition is a sports nutrition retailer supplying protein and supplements. Founded more than three decades ago, the brand is known for its popular protein powder, Gold Standard 100% Whey. Optimum Nutrition also offers drinks and multivitamins.
Shipping
Optimum Nutrition offers free standard shipping on orders over $75.
Returns
Optimum Nutrition accepts returns received within 30 days of purchase.
Rewards
Optimum Nutrition offers a 15% discount code to shoppers who sign up for its e-newsletter.
Pay later
Optimum Nutrition lets you buy now and pay later through Klarna, a third-party platform that separates payments into four interest-free installments.
No, Optimum Nutrition does not allow coupon stacking.
Retailers selling Optimum Nutrition products may offer in-store or curbside pickup options. Visit the Where to Buy page on the brand’s website to find a local retailer near you to learn about their pickup policies.
Optimum Nutrition does not currently offer a rewards program.
Optimum Nutrition only ships within the United States and offers two shipping options. Standard shipping is $5.99 and takes three to eight business days. Next-Day shipping is $16.99 and takes one business day.
Optimum Nutrition may accept returns for items that meet the following qualifications: The merchandise must be received by Optimum Nutrition within 30 days of your purchase; you must provide your purchase order number; apparel and accessories must be unworn, unwashed and in good condition with all original tags and labels attached to the item and in the original packaging; and dietary supplements and other consumable product returns are only accepted if it was purchased through OptimumNutrition.com or Consumer Affairs, with 75% or more of the product unused. For additional information on the brand’s return policy, visit the Returns Policy page on the Optimum Nutrition website.
No, Optimum Nutrition does not price match.
Get 35% off sitewide with coupon code.
Not valid in combination with bundles. Get 15% off Sitewide. Terms and conditions apply. While supplies last.
Buy More Save More! Get $10 Off Orders over $50 or $15 Off Orders over $75 or $25 Off Orders over $100. Terms and conditions apply. Offer valid while supplies last.
Buy More, Save More! 10% off $70, 15% off $100 & 20% off $150
Not valid in combination with other promotion or Bundles
Get $60 off orders with code. Offer valid for members only. Terms apply.
Get 30% off sitewide with promo code.
Get 25% off storewide orders. A promo code is required at checkout.
Get 15% off orders with promo code.
Buy any 2 Unlimited Lines and get 1 free. Enter promo code at checkout to redeem.
Get 10% off Best Sellers with the purchase of NEW 30g Ultra-Filtered Milk Protein Shake + Fiber.