Fuelling for strength training

Strength training is not an endurance sport, but a hard session still runs on carbohydrate. Your muscles store enough glycogen for a short, easy workout; push the intensity up, or stay on the floor past about 45 minutes, and the available fuel runs down, which is when the last sets go flat. This page covers before, during and after a lifting session, a gel plan by session length, and how to adjust for a hot, humid Indian gym.

Who this is for

Energy gels were first made for ultra-trail runners more than 30 years ago, but the arithmetic is the same for anyone working out at the gym.

• Sessions under an hour. Nothing mid-session; a gel before you start is plenty.
• Heavy compound days and strength-plus-conditioning sessions of 60–90 minutes. One well-timed gel keeps the second half sharp.
• Long sessions, high-rep circuits, two-a-days, and lifting stacked on a run or ride. Fuel on a schedule, and look at Roctane.

New to gels? Start with energy gel 101, then how to choose the right gel.

Before the session

Two jobs: start hydrated and start topped up.

• Hydrate through the day, then take 200–350 ml of fluid in the 1–2 hours before you train. Dehydration can raise heart rate, bring on cramps and cause headaches, none of which help a heavy squat.
• Eat your normal meal earlier and keep fibre and protein away from the session itself; both digest slowly and sit heavy under a bar.
• Top up 5–15 minutes before the first working set: one gel, 20–30 g of carbohydrate, with a few sips of water. Maltodextrin and fructose give fast-acting and longer-lasting carbohydrate from one packet.
• Early-morning lifters: a 6 am session in Gurugram or Pune usually starts on an empty stomach. A gel at the door gets carbohydrate in without a meal to digest, and a caffeinated flavour (20 or 40 mg in Original and Liquid, 35 or 70 mg in Roctane) adds focus; see caffeinated vs non-caffeinated.

During the session

Past the hour mark, or in a high-rep circuit, glycogen runs down and fast-digesting carbohydrate earns its place: it keeps energy up through heavy reps and heads off the mid-workout slump. The guideline printed with every gel is one every 20–30 minutes with water; lifting is intermittent, so most lifters sit at the longer end of that interval. Take it after the main compound lift or just before the conditioning piece, with 90–120 ml of water.

One 100-calorie gel at a time is enough: the body processes roughly 120–240 calories per hour during exercise, and the more you eat, the more blood goes to the gut instead of the muscles.

Gel	Carbohydrate	Sodium	Amino acids	Caffeine options	Best for
Original Energy Gel	22 g	60–125 mg	450 mg	0, 20 or 40 mg	Most gym sessions; the pre-workout top-up
Liquid Energy Gel	23 g	75 mg	450 mg	0, 20 or 40 mg	Hot gyms; easier to get down between sets; freezes for pre-cooling
Roctane Energy Gel	21 g	125–180 mg	1,425 mg	0, 35 or 70 mg	Sessions over 90 min, heavy blocks, heavy sweaters

Carbohydrate is similar across the three; the difference is sodium, amino acids and texture. Roctane has up to 3x the sodium and 3x the branched-chain amino acids of Original, plus taurine and beta-alanine; beta-alanine helps your muscles build up carnosine, a natural acid buffer, which may push back the point where hard efforts start to burn. Roctane vs Original has the detail.

Tip: treat the gel like a planned set. Write it into the session ("after squats: gel + water") and take it there; a gel taken when you already feel flat is 20 minutes late.

After the session

A gel is a during product, not a recovery one, and carbohydrate, not protein. Within about 30 minutes of the last set, eat carbohydrate, protein and electrolytes together; a useful target is around 20 g of protein with 30 g of carbohydrate. Milk and a banana, curd rice, eggs with poha or paneer with roti all do the job. Keep drinking for the rest of the day to replace what you sweated out.

Branched-chain amino acids support muscle recovery, reduce the risk of delayed-onset muscle soreness and help protect working muscle from breakdown. Every gel carries some (450 mg of amino acids in Original and Liquid, 1,425 mg in Roctane), one reason to reach for Roctane through a heavy block, not only on long days.

A gel plan by session length

These intervals come from the suggested-use guide printed with every gel, adjusted for the stop-start nature of lifting.

Session	Before	During	Total gels	Notes
Up to 60 min (hypertrophy, technique)	One gel 5–15 min before	None needed	1	None mid-session if you ate earlier in the day.
60–90 min (heavy compound day, short finisher)	One gel 5–15 min before	One gel at 45–60 min, after the main lift	2	Original. Water with the gel.
90 min to 2 hr (full-body day, high-rep circuits)	One gel 5–15 min before	Every 30 min	3–4	Roctane if the gym is hot or you sweat heavily.
2 hr and beyond, or two-a-days (competition day, lifting then a run)	One gel 5–15 min before	Every 20–30 min, as much as the gut comfortably handles	2–3 per hour	Roctane. Mix in Liquid Energy Gel against flavour fatigue; aim for what you can absorb, not everything you burn.

For a day that mixes lifting with running or cycling, put the combined duration into the fuel calculator, and see fuelling for training load for scaling intake across a block.

Hydration and heat: notes for India

A ground-floor gym in Chennai or Kolkata in May, a tin-roofed akhada or a garage set-up with one fan is warm and humid before the first set, and a 90-minute session can sweat as much as a run. Heat changes the plan in three ways.

• You lose more sodium. Sweat can carry away over 1,000 mg of sodium per hour, more in heat and humidity, and replacing water without salt invites cramps. Aim for 300–800 mg of sodium per hour; a Roctane gel contributes 125–180 mg, and its Lemonade flavour has the most sodium of any gel. See energy vs hydration.
• Drink roughly 475–950 ml per hour (16–32 oz) in sips between sets, not a bottle at the end, and keep hydrating for the rest of the day.
• A hot body digests more slowly, because blood goes to the skin instead of the gut. Smaller, more frequent doses are easier to handle, and the thinner Liquid Energy Gel goes down more easily between sets. It also freezes: a slushie gel on the way to a hot gym is fuel and pre-cooling in one.

Tip: if a calf has ever locked up mid-deadlift in a hot gym, read muscle cramps and electrolytes before the next heavy session; plain water does not put the salt back.

Common mistakes

1. Gels for a 40-minute session. A short, well-fed session needs only the gel before the start.
2. Training fasted for 90 minutes and wondering why the last block is flat. Top up before, and fuel on a schedule once past the hour.
3. Taking a gel without water. Water helps the body process the fuel and spares you a heavy stomach under the bar.
4. Expecting a gel to do recovery. Protein and carbohydrate within 30 minutes of finishing do that job.
5. A 70 mg caffeine gel at a 9 pm session. Caffeine is a sleep decision as much as a training one; the flavour and caffeine chart lists every dose.

FAQ

Do I need a gel for a 45-minute hypertrophy session?

Not mid-session. If you ate earlier in the day, one gel 5–15 minutes before the first working set, with a few sips of water, covers it.

Original or Roctane for lifting?

Original covers most gym sessions. Roctane earns its place past 90 minutes, in hot gyms and through heavy blocks: up to 3x the sodium, 3x the branched-chain amino acids, plus taurine and beta-alanine.

Can a gel replace my post-workout protein shake?

No. A gel supplies carbohydrate, electrolytes and a small dose of amino acids for use during training; afterwards you need protein and carbohydrate together, within about 30 minutes, from a shake or a meal.

These are general guidelines, not medical or individualised nutrition advice; needs vary with body size, training status, health history and conditions, so consult a qualified sports dietitian before making significant changes. These statements have not been evaluated by a regulatory authority. This product is not intended to diagnose, treat, cure or prevent any disease.

Next steps

• Get a gel count for your longest session with the fuel calculator.
• Read fast vs steady energy for how a gel is absorbed.
• Stock up in all gels.