Ethan BrooksBy Ethan Brooks

Updated November 2026

Energy gels on Black Friday can be worth buying, but only if you check three things first: the expiration date, the flavor and caffeine content you actually tolerate, and whether the discount beats what you would pay during the rest of the year. Plenty of runners stock up on energy gels black friday weekend and end up with a drawer of unused packets. A few minutes of planning prevents that.

Why Black Friday Is a Good Time to Buy Gels

Retailers often discount running nutrition during the late-November sales window because it moves stock before the new year. For runners who already know which gel works for their stomach, that can mean a real savings on the fueling that supports long training runs. The key word is “already know.” A discount on a flavor that upsets your stomach is not a deal.

Shopping for one? See our guide: Honey Stinger Energy Gels Review (2026): Pros and Cons.

Bulk variety packs also show up more often during this period. These can be useful for trying several brands at once, though you should expect to find one or two you dislike. Before buying a large case, consider whether you have tested the product in training. If you have not, a single box or a smaller variety pack is the safer choice.

Factors That Decide Whether a Gel Deal Is Worth It

Several factors matter more than the sticker price. Compare these before you check out:

  • Expiration date. Clearance stock is sometimes close to its use-by date. Check the printed date and make sure you can use the gels before they expire.
  • Carbohydrate type and amount. Most gels provide roughly 20 to 25 grams of carbohydrate per packet, and many use a maltodextrin and fructose blend. Match the carbohydrate profile to what you have practiced with in training.
  • Caffeine content. Caffeinated and non-caffeinated versions are both common. Caffeine can help some runners in the late stages of a race, but it can also cause jitters or stomach trouble if you have never used it before.
  • Packaging and water needs. Some gels require water to wash them down, while others are more viscous. Think about the water availability on your race course.
  • Total quantity needed. A typical marathon plan might call for three to six gels on race day, plus practice runs. Buy enough for your training block and race, plus one or two spares, rather than a year’s supply.

How to Test Gels Before You Commit

Gut tolerance is individual, and most stomach problems come from testing a new gel on race day. Use Black Friday purchases as training fuel first. Take one gel during a long run at about 45 to 60 minutes in, and take it with the amount of water you will have available on race day. If your stomach stays settled over two or three long runs, the gel is a candidate for race day.

Keep a simple log of the brand, flavor, timing, and how you felt. Over a few weeks you will know which gels to keep stocking and which to donate. If you have a history of digestive issues or a medical condition, speak with a doctor or a registered dietitian before changing your fueling plan.

Practical Steps for Your Black Friday Shopping

  1. Write down your current gel brand and flavor, and note whether it sits well during long runs.
  2. Estimate how many gels you need for the next 12 to 16 weeks of training, plus your race.
  3. Check the expiration date on every box before you buy, especially for clearance items.
  4. Buy one new flavor or brand as a test rather than a full case.
  5. Trial any new gel on at least two long runs before race day.
  6. Store unopened gels in a cool, dry place, away from direct heat in a car or garage.
  7. Compare the final price per gel, not just the percentage off, against regular pricing.

What We’d Use

If you are looking for a dependable everyday option that many runners already use, GU Energy Gel is a widely available choice with several flavors and caffeinated versions. Look for it in multipacks during the sale.

For runners who prefer a gel with a different carbohydrate profile, Maurten Gel 100 is a well-known option built around a specific carbohydrate blend, and it is worth testing in training before race day. View on Amazon

For a more budget-friendly variety pack to test several flavors, Honey Stinger Organic Energy Gel is a common choice in variety assortments. View on Amazon

Are energy gels on sale worth buying if I don’t know my stomach tolerance?

Buy a small quantity first. A single box or variety pack lets you test tolerance during training without committing to a full case.

How long do energy gels last after opening?

Once opened, consume the gel within the time printed on the packet and keep it sealed until use. Follow the manufacturer’s storage instructions.

Should I take caffeine gels on race day?

Only if you have tested caffeine in training. Caffeine effects vary widely, so practice before relying on it.

How many gels do I need for a marathon?

Many marathon plans use three to six gels, depending on pace, fueling strategy and your body’s response. Build the plan during training and adjust from your logs.

When should I take my first gel during a long run?

Many runners start around 45 to 60 minutes into the run, then repeat at regular intervals. Read more in our timing guides for full detail.

Ready to choose one?

Ethan Brooks

About Ethan Brooks

Ethan Brooks is part of our editorial team and reviews and edits our marathon & half-marathon guides, checking product details against manufacturer specifications and owner feedback.