Sustained Energy 2.0
Sustained Energy 2.0
Sustained Energy 2.0

Sustained Energy 2.0

$40.76 EACH
87 reviews
The original ultra fuel, NEW and improved
  • Stable energy levels, hour after hour
  • Non-Acidic, lactic acid buffering
  • Spares muscle mass
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made in usa vegan no added sugars

The world’s first protein-fortified sports drink still stands the test of time. Designed to provide steady energy, buffer lactic acid, and prevent lean-muscle cannibalization, this unsweetened and mild-tasting, 7:1 carb-to-protein blend has been a fan favorite since 1992. 30 years later, we’ve taken it up another huge level by replacing the corn maltodextrin with massively superior tapioca maltodextrin. Superior because of far less processing, guaranteed no GMO content, lower amounts of sodium and higher amounts of naturally occurring potassium, and a more-alkaline pH. Tapioca maltodextrin has the same Glycemic Index (GI) as other forms of maltodextrin, so you get the fast-acting energy that you’re looking for. Coupled with that, tapioca maltodextrin has a lower Dextrose Equivalent (DE), which means more polysaccharide (complex carb) chains for even longer-lasting energy and endurance.

Tapioca is the sugar and corn alternative we’ve been wanting to bring to you for years is finally here!

Whether you’ve been using Sustained Energy for 30 years or are thinking of trying it for the first time, you are going to be impressed with this 2.0 version, guaranteed!

Sustained Energy 2.0 is especially popular with ectomorphic, hyper-metabolic body types with limited fat stores who struggle to maintain muscle mass during high-volume training.

Sustained Energy FAQs


Hammer Nutrition offers two superb long-distance fuels in powder form – Sustained Energy 2.0 and Perpetuem 2.0. Sustained Energy 2.0 (“SE” as it’s commonly referred to) was introduced in 1992; Perpetuem first became available in early 2003. The newer 2.0 versions of both fuels were introduced in 2022. Perpetuem 2.0 and Sustained Energy 2.0 are intended to be used as your primary or sole fuel when exercise goes beyond two hours.

Deciding whether to use Sustained Energy 2.0 or Perpetuem 2.0 (or both) will undoubtedly be influenced by personal preference; however, there are a few differences between these two time-proven fuels that can assist you in the selection process.

CALORIES: Every 2-scoop serving of Perpetuem 2.0 contains 180 calories. Sustained Energy 2.0 contains 200 calories per 2-scoop serving.

PRIMARY INGREDIENTS: Sustained Energy 2.0 contains a 7:1 ratio of complex carbohydrates to soy protein and is fat free. Perpetuem 2.0’s carbohydrate-to-protein ratio is approximately 8:1, with 2.0 gramsof healthy fat (soy lecithin, sunflower oil) added to every 2-scoop of the formula.

Three reasons for the inclusion of this specific fat in Perpetuem 2.0 are:

  1. To act as a natural preservative, increasing the “shelf life” of the carbohydrate and protein components
  2. To assist the body in more liberally releasing its fatty acids stores, which account for up to two–thirds of one's energy requirements in long bouts of exercise
  3. To slightly slow the rate of digestion and thus decrease hunger pangs

AUXILIARY NUTRITIENTS: Perpetuem 2.0 contains Sodium Phosphate (aka Sodium Tribasic Phosphate). This nutrient was not added to the Sustained Energy 2.0 formula. Primary among its benefits, Sodium Phosphate is a powerful acid-buffering nutrient, reducing the burning sensation effects of lactic acid buildup. Both fuels contain l-carnosine, which is also an effective acid-buffering/pH-neutralizing compound.

FLAVORS: Sustained Energy 2.0 has always come in a neutral (“plain”) flavor. Perpetuem 2.0 comes in four flavor options—orange, strawberry, chocolate, and caffe latte (includes 15 mg of caffeine per scoop).


We have noted that Sustained Energy 2.0 may be the ideal fuel choice when endurance exercise intensity is at a higher level (approximately 70–85% MHR), whereas Perpetuem 2.0 may be a more attractive choice the longer the athlete goes and when exercise intensity is at a more aerobic pace (under 70% MHR). Additionally, over the course of many years we have noted that Sustained Energy 2.0 may be the best option for very lean athletes (the “high metabolizer/hyper–metabolic” types), while Perpetuem 2.0—with its added healthy fat component—may be more appropriate for athletes with a naturally higher body fat percentage. The rationale for this suggestion is that athletes with a higher body fat percentage have a greater volume of calories available from body fat stores, which the healthy fat in Perpetuem 2.0 may effectively assist in accessing for use as energy.

Bottom line: With Perpetuem 2.0 and Sustained Energy 2.0 you have two great long distance fuel choices. When exercise goes beyond about two hours, you can use either product as your sole fuel, in tandem with each other, or as your primary fuel along with any of the other Hammer Nutrition fuels. Taking into account the earlier-listed differences between the products, as well as testing each product under a variety of conditions in your long–duration workouts, will allow you to determine which fuel works best for you.

Is It Okay To Mix Perpetuem 2.0 Or Sustained Energy 2.0 And Keep It Refrigerated?

It is perfectly acceptable to mix bottles of Perpetuem or Sustained Energy ahead of time, though for maximal potency we recommend consuming the pre-mixed bottle(s) within 48 hours’ time once mixed. Freezing the mixture is also completely acceptable, and there is no time limit on when you need to consume frozen Perpetuem or Sustained Energy. You may notice a small amount of crystals at or around the top of the bottle. This is due to the l-carnitine component in these two fuels, which is very hygroscopic (has an affinity for water). L-carnitine formed crystals may signal a slight reduction in potency of this amino acid; however, this crystallization effect is normal and harmless, and the product is perfectly acceptable for consumption.

How Should I Mix Perpetuem 2.0 Or Sustained Energy 2.0 For A Hot-Weather Event?

If the weather is going to be mild-to-warm you should make your multi-hour bottle(s) of Perpetuem or Sustained Energy the night before and freeze them. If, for example, you’re doing an iron-distance triathlon you can put both bottles on the bike or leave one at Special Needs. If you’re doing a 6-hour cycling event, you can carry both bottles on the bike. If you’re doing an ultrarunning race, you can carry one and have the other in a small cooler at the “bag drop” aid station.

If it’s going to be hot on your iron-distance triathlon, freeze your first multi-hour bottle of Perpetuem or Sustained Energy. Freeze the second bottle as well, but prior to putting it in the freezer, wrap a wet face cloth or rag around the bottle and secure with a couple rubber bands… then stick it in the freezer. This second bottle will end up having a frozen face cloth/rag around it, which provides extra insulation to help keep it cool. This second bottle will go to Special Needs. This is also a good strategy for ultrarunners who have a “bag drop” aid station. Carry the first frozen multi-hour bottle with you, and pick up the wrapped-frozen multi-hour bottle at the bag drop aid station.

If the weather is going to be extremely hot on event day, make up and freeze your first multi-hour bottle of Perpetuem 2.0 or Sustained Energy 2.0 and carry with you on bike or body. Have the second one waiting for you, dry powder only in a bottle at Special Needs (triathlon), on your bike (cycling events), or at the “bag drop” aid station (ultrarunning). You will have to stop briefly to add cold water to the powder-only bottle and spend a little time getting it mixed. However, this is time well invested because you will have a fresh bottle of cold fuel to cover you for the next several hours.

How soon after mixing Perpetuem 2.0 and Sustained Energy 2.0 do they need to be consumed?

In moderate temperatures, a pre-mixed bottle of Perpetuem or Sustained Energy should be suitable for consumption for up to 5 hours, perhaps even slightly longer. In warm-to-hot weather, that consumption “window” will be shorter, as short as 2 hours in very warm weather. Freezing your pre-mixed bottle(s) of fuel the night before will extend their palatability (i.e., staying colder longer) and keep the mixture suitable for consumption for a longer period of time.

How do I determine the equivalent of one scoop of Sustained Energy 2.0?

No scoop? No problem! With the following conversion information, your "Where did my scoop go?" problems are resolved!

Sustained Energy
1 Level Scoop (50 cc) = 3 TBSP + 1 tsp

How to Use

1-Hour Bottle
Mix 1–2 scoops in a 16–26 oz bottle and consume entire contents each hour. Only supplemental electrolytes are needed here.

Multi-Hour Bottle
Mix 1–2 scoops per hour of planned exercise, up to 8 scoops in a large water bottle. Drink gradually over the desired number of hours.

Mix 1–3 scoops in a bowl with a small amount of water, stir, and mix until the combination forms a paste. Fill a flask or other container with paste. Use as desired during exercise as a source of calories only.


When consuming in this manner, it’s not a source of hydration, just calories. You must have a separate, plain water source for your hydration needs. You must also consume electrolytes from an independent source.


For exercise lasting three hours or more, use from the outset.

Sustained Energy 2.0 contains no artificial preservatives. To avoid spoilage, do not premix or leave unrefrigerated, especially in warm weather.


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Tapioca Maltodextrin – A high-glycemic index (GI) complex carbohydrate, ideal for providing fast-acting, long-lasting energy during exercise.

Isolated Soy Protein – A dry powder food ingredient that has been separated or isolated from the other components of the soybean, making it 90 to 95 percent protein, and nearly carbohydrate- and fat-free.

L-Carnosine – This dipeptide (a combination of two amino acids) L-carnosine is a potent lactic acid buffer. It also offers antioxidant support.

L-Carnitine Tartrate – L-Carnitine Tartrate is a compound containing L-carnitine chelated (“bonded”) to L-tartrate, which is a salt of tartaric acid. L-carnitine is the key nutrient involved in the shuttling of fatty acids into the cell for energy production. Tartrate is a potent antioxidant.

Choline Bitartrate – A type of B-complex vitamin that helps with efficient use of body fat stores as energy. Choline bitartrate also supports enhanced cognition, learning, and memory.

Chromium Polynicotinate – This trace mineral helps regulate blood sugar and plays a vital role in energy production.

Nutritional Information
Sustained Energy 2.0
Nutrition Facts
Serving Size: 53g (Approx 2 Level Scoops)
  Amount Per Serving % Daily Value*
Calories 200  
Total Fat 0g 0%
Saturated Fat 0g 0%
Trans Fat 0g  
Cholesterol 0mg 0%
Sodium 80mg 4%
Total Carbohydrate 43g 16%
Dietary Fiber 0g 0%
Total Sugars 2g  
Added Sugars 0g 0%
Protein 6g 12%
Vitamin D 0mcg 0%
Calcium 35mg 2%
Iron 1mg 6%
Potassium 25mg 0%
Phosphorus 60mg 6%
Iodine 25mcg 16%
Magnesium 7mg 2%
Copper 0.1mg 10%
Chromium 11mcg 30%
*Percent Daily Values are based on a 2,000 calorie diet.
Ingredients: Tapioca Maltodextrin, Isolated Soy Protein, Amino Acids (L-Carnosine, L-Carnitine), Choline Bitartrate, Chromium Polynicotinate.
This product is processed in a facility that also processes dairy, egg, and wheat products.
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Filter Reviews:
United States United States

Sustained Energy 2.0

it seems to give my body energy

United States United States

Sustained energy

It’s ok Prefer strawberry vanilla perpetuem

Jesse S.
United States United States

Consistently great products

I’ve been using these products for years. Some years are bigger than others, but I can always count on hammer products to get me through and recover from every workout now matter how long and grueling. Thanks to the hammer team for the great products and service!


I like this because it comes unflavored

I like unflavored Sustained Energy because sometimes flavored drinks become tiresome. This one goes down easy and provides the energy i need for long rides.


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