NOS Energy Drink

Caffeine Levels

per fl. oz can


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NOS Energy Drink is named after a brand of Nitrous Oxide and is popular with car and racing enthusiasts.

We just received a tip that NOS has lowered the caffeine content of their energy drinks from 260 mg to 160 mg per 16 Fl.oz. can.

It looks like some retailers are now selling the new 160mg version, but others are still selling the 260 mg can especially Charged Citrus and Loaded Cherry.

The original NOS Energy Drink is grapefruit/citrus flavored and comes also in a 22 Fl.oz resealable bottle. This version has 220 mg of caffeine

Other flavors of NOS include:

  • Zero- sugar-free version (sweetened with ace-k and Splenda): 160mg of caffeine
  • Loaded Cherry: 160mg of caffeine
  • Grape: 160mg of caffeine
  • Charged Citrus: 160mg of caffeine
  • Active (non-carbonated sports drink): 122mg/12 Fl.oz. bottle. (discontinued)

NOS is manufactured by the High Performance Beverage Company. This is owned by Fuze Beverages LLC, which has now been purchased by Coca-cola.

However, recently Coke gave Monster Energy the rights to this brand as part of a stock deal between the two corporations. 

Note: Consumer Reports r tested NOS and they found it to only contain 224mg of caffeine per can instead of the 260mg NOS used to have. (old version)

Perhaps the recent increased FDA scrutiny concerning the caffeine in energy drinks is why NOS adjusted their caffeine amounts to more moderate levels.

Where To Buy NOS Energy Drink

NOS Sugar Free Energy Drink, 16 fl oz, 12 pack

Price: $31.99 $23.49 Available from Amazon / NOS

NOS HIgh Performance Energy Drink (16 oz. can, 24 pk.)

Price: $52.95 $45.86 Available from Amazon / NOS

16 Pack - NOS High Performance Energy Drink - Grape - 16oz.

Price: $32.95 $32.95 Available from Amazon / NOS

Nos High Performance Energy Drink, 16 Ounce (24 Cans)

Price: $45.65 $35.99 Available from Amazon / Nos High Performance

16 Pack - NOS High Performance Energy Drink - 16oz.

Price: $29.99 $29.50 Available from Amazon / NOS

Ingredients in NOS Energy Drink

(Regular Version) Carbonated Water, High Fructose Corn Syrup, Citric Acid, Taurine (1000mg), Sodium Citrate, Natural Passionfruit Flavor With Other Natural Flavors, D-Ribose, L-Carnitine, Caffeine, Sodium Hexametaphosphate, Pectin, Ascorbic Acid (Vitamin C), Inositol, Gum Arabic, Monopotassium Phosphate, Sodium Benzoate, Potassium Sorbate, Ester Gum, Panax Ginseng Root Extract, Calcium Disodium Salt of EDTA (protects freshness), Sucralose, Pyridoxine Hydrochloride (Vitamin B6), Beta-Carotene (Color), Folic Acid, Cyanocobalamin (Vitamin B12).

Sugar content: 54 grams (per 16 ounces).

Compare Sugar Content

Caffeine Concentration

NOS Energy Drink contains 10.00 mgs of caffeine per fluid ounce (33.81mg/100 ml).

Caffeine (mg) per Ounce
100 90 80 70 60 50 40 30 20 10 0 NOS Energy Drink 5 Hour Energy Coffee (Espresso) Coca-Cola Classic Spike Energy Drink


From the NOS site at and from Fuze Beverages as well as the cans.