Quick fixes lift you for an hour and foundations carry the whole day: ten practical ways to get more energy, and the order to try them in.
Key Takeaways
Energy responds most to regularity: consistent sleep and wake times matter as much as sleep duration, and a fixed wake time is the single most useful habit.
Movement pays for itself: it costs energy in the moment but sharpens alertness straight away, and even low-intensity activity reduces fatigue in people who feel too tired to exercise.
Regular meals built on slow-release carbs, protein and fibre keep blood glucose, and therefore energy, steadier than sugary quick fixes.
Caffeine and alcohol both work against the next night's sleep when badly timed; a caffeine cut-off around eight hours before bed protects it.
Tiredness that persists for weeks despite good sleep, meals and movement deserves a GP conversation, not another quick fix.
Evan Lynch is a CORU-registered dietitian with a BSc in Food Science and Health, a Postgraduate Diploma in Dietetics, and an MSc in Sports Nutrition. Evan is the Head of Nutrition for Europe at AG1, where he supports strategic nutrition direction, education, and evidence-based communication. Alongside this role, he runs a private practice supporting clients across sports nutrition, gastrointestinal disorders, geriatric nutrition, and weight management.
Some things lift you within minutes: a brisk ten-minute walk, a glass of water, five minutes of daylight, a proper snack instead of another biscuit. They work, and they all appear in the list below.
They also have a limit. A quick fix borrows energy rather than creating it. If your sleep is short, your meals erratic and your afternoon runs on coffee, no walk around the block will out-argue that. Energy behaves more like a system you maintain daily than a slump you patch at 3pm. The ten tips below are ordered accordingly: the foundations come first because they do most of the work, and the quick lifts sit inside them.
Before adding anything, it helps to know what is subtracting. The usual suspects, roughly in order of impact:
Every tip below targets one of these. Fix the ones that apply to you, in order, and the afternoon tends to look after itself.
No single habit moves energy more than sleep, and regularity matters as much as duration. Going to bed and waking at roughly the same times each day, weekends included, keeps your body clock anchored. In a study of over 60,000 UK adults, sleep regularity predicted long-term health outcomes more strongly than sleep duration did.⊕ Aim for the 7 to 9 hours most adults need,⊕ but put your first effort into consistency: a fixed wake time is the single most useful habit, because it drags everything else into line.
If you slept badly, resist the urge to compensate with a long lie-in or a late-evening nap. Both push your body clock around and tend to trade one flat day for two.
Energy boosting foods are less exotic than the internet suggests. The pattern matters more than any single ingredient: regular meals at predictable times,⊕ each built around slow-release carbohydrates (oats, wholegrain bread, beans, lentils), some protein and plenty of fibre. That combination digests gradually, which means steadier blood glucose and fewer of the peaks and dips that read as energy swings.
The pattern to avoid is the reverse: skipping meals, then bridging the gap with something sugary. The lift is real but short, and the dip that follows usually arrives mid-meeting. If you want foods that give you energy through the afternoon, the boring answer is a proper lunch with all three components, eaten before you are ravenous.
This is the counterintuitive one. Exercise costs energy in the moment, yet it leaves you with more of it: moving makes you more alert straight away, and over time it trains your body to use the energy it has more efficiently and to resist fatigue. In a six-week trial with inactive adults reporting persistent fatigue,⊕ regular exercise raised energy and reduced fatigue, and the low-intensity version cut fatigue the most. You do not need a training plan to collect this benefit. A brisk walk, a cycle to the shops, taking stairs by default, all count.
Movement is also the best of the quick fixes: ten minutes of brisk walking is a more reliable pick-me-up than a snack, and it has no crash attached. If your energy dips at a predictable time of day, put a short walk directly in its path.
Your body clock takes its cue from light, and morning light is the strongest signal it gets. Ten to twenty minutes of daylight soon after waking, ideally outdoors, helps anchor your circadian rhythm,⊕ which supports alertness during the day and sleepiness at the right time at night. Even an overcast British sky delivers far more light than a bright office.
The cheapest way to do this is to bolt it onto something you already do: coffee by a window is fine, coffee outside is better, and a morning walk combines this tip with the previous one.
Mild dehydration, around 1 to 2 percent of body weight, is enough to dent mood, concentration and perceived energy,⊕ and it arrives before you feel properly thirsty. Some afternoon flatness is nothing more than this. The fix is proactive: get ahead of your thirst rather than answering it, the way you top up a car's oil before the engine overheats, not after.
The NHS suggests 6 to 8 cups or glasses of fluid a day,⊕ more in heat or around exercise. Water, lower-fat milk and tea all count. The practical trick is availability: a filled bottle or glass on the desk gets drunk, one in the kitchen does not.
Stress uses up energy in its own right.⊕ A day spent in low-level alert mode is tiring even if you never leave your chair, and it degrades the sleep that was meant to repay the debt. The cost is not only mental: there is evidence that ongoing stress can deplete some of the micronutrients your energy metabolism runs on,⊕ which is part of why a stressful week leaves you so flat. You do not need an elaborate protocol here: the interventions with the best evidence are unglamorous ones such as regular movement, time outdoors, protected wind-down time before bed and keeping some unscheduled space in the diary.
It also helps to notice which tasks and people reliably flatten you and to stop scheduling them, where you can, into the part of the day you need most.
Alcohol is a sedative, which is why it feels like it helps you sleep, and it does send you off faster. The problem comes later. A review of studies on alcohol and normal sleep found that it consolidates the first half of the night, then disrupts the second half and reduces REM sleep across the night,⊕ which is why a few drinks so often produce a 3am wake-up and a flat next day. If your energy is unreliable, evening alcohol is one of the first places to look.
You do not have to abstain to feel the difference. Keeping within the UK guideline of 14 units a week,⊕ spread out, with several drink-free days, is usually enough to notice better mornings.
Caffeine works, and it neither needs banning nor a free pass. It blocks the brain's sleepiness signal rather than adding energy, which has two consequences worth knowing. First, the sleepiness it blocked returns when the caffeine wears off, which is the familiar crash. Second, caffeine hangs around: its half-life averages about five hours,⊕ with wide variation between people, and a coffee even six hours before bed measurably disrupts sleep,⊕ whether or not you notice it.
The playbook that follows from this is simple. Have your caffeine in the morning and early afternoon, hold a cut-off somewhere around eight hours before bed, and never use the day's third coffee to paper over a bad night; that trade repays itself with interest. Used this way, caffeine is a perfectly good tool. Used constantly, it helps cause the tiredness it treats.
Underneath everything above sits a plainer requirement: your body converts food to energy through processes that depend on an adequate supply of specific micronutrients. Several B vitamins (B2, B3, B5, B6 and B12), vitamin C and magnesium contribute to normal energy-yielding metabolism,⊕ and those same nutrients, along with iron and folate, contribute to the reduction of tiredness and fatigue.
None of these will lift a well-fed person higher; this is about adequacy, not enhancement. A varied diet covers most of it: wholegrains, legumes, leafy greens, nuts and seeds, dairy or fortified alternatives, eggs, fish and meat if you eat them. Iron deserves a specific word, since low iron is one of the more common nutritional reasons for persistent tiredness,⊕ particularly in women. Keep iron-rich foods (red meat, legumes, dark leafy greens) in the rotation, and if you suspect a deficiency, ask your GP for a blood test rather than guessing.
Most flat afternoons are habits, not health problems, and everything above is fair game to try. But tiredness that persists for weeks despite decent sleep, regular meals and the rest of the foundations deserves a GP conversation.⊕ The list of ordinary, checkable explanations is long, and a blood test settles several of them. If you want to understand the possibilities first, we have covered why you are always tired separately.
Quick fixes are fine and foundations are better, but persistence is the one signal not to ignore. And if tiredness arrives alongside other changes, such as losing weight without trying or a shift in your usual bowel habits, do not wait the weeks out: book the GP appointment promptly.
No. Electrolytes are minerals that help regulate fluid balance,⊕ and they carry no calories, so they do not provide energy in the fuel sense. Where they earn their keep is around heavy sweating: long or hot training sessions, where replacing sodium alongside fluid helps you rehydrate properly. For an ordinary desk day, water and regular meals do the same job, and if dehydration was your problem, fixing that is what restores your concentration, with or without an electrolyte tablet.
Nothing you can take substitutes for the foundations, and anything promising otherwise is overselling. If your diet has gaps, the nutrients listed in tip 9 are the ones to look at first, from food where you can. Some people find a daily foundational blend a convenient way to keep their baseline micronutrient intake consistent when routines get messy; that is a fair option, not a requirement, and it does not replace meals or sleep. What is not worth your money is anything marketed as an energy shortcut: the ingredients that matter are the unglamorous ones above, and adequacy is the whole game.
Usually because one of the other foundations is missing: sleep at irregular times (duration is not the only variable), alcohol fragmenting the night, caffeine too late the previous day, dehydration or a long gap since a proper meal. Work through those first, since each is checkable within a week. If you routinely wake unrefreshed despite consistent, adequate sleep and tidy habits, that is exactly the persistent pattern from tip 10, and it is worth a GP appointment to rule out the common, treatable explanations.
