"Best supplements for energy" usually gets treated as one question with one answer. It isn't. Low energy has different causes, and the supplement that actually helps depends on which one you're dealing with. Here's how to match the right one to the right kind of tired.

Written by Vita Globe Editorial Team | Reviewed against peer-reviewed research and NIH guidance

Why "Energy Supplement" Is a Misleading Category

"Energy" isn't one thing your body produces from one dial. Feeling drained can come from an actual nutrient shortfall, from muscles running low on the fuel needed for intense effort, from a foggy, unfocused mind, or simply from not sleeping or eating well — and each of those has a different fix. A supplement built for one won't do much for another, which is exactly why so many "energy" products lean on caffeine to make sure you feel something, regardless of what's actually causing your fatigue.

The three categories below — B vitamins, creatine, and mushroom complex — each have a real, specific, evidence-backed job. None of them is a general-purpose fatigue switch, and knowing which job is yours is most of the work in choosing well. For the broader picture on what actually supports energy day to day, including sleep and diet fundamentals, see our energy overview.

B12 and B-Complex: For Deficiency-Related Fatigue

B vitamins, including B12, function as coenzymes your body needs to convert food into usable energy. That's exactly why deficiency causes real fatigue: NIH notes that a vitamin B12 deficiency can leave you feeling "tired or weak," which is a hallmark symptom of the anemia B12 deficiency can cause^[1].

Here's the honest catch, straight from NIH: "manufacturers often promote vitamin B12 supplements for energy, athletic performance, and endurance. However, vitamin B12 doesn't provide these benefits in people who get enough B12 from their diet."^[1] In other words, B12 fixes B12-deficiency fatigue — it isn't a general stimulant for someone who isn't deficient in the first place.

Who's actually at elevated risk of a real shortfall? NIH points to older adults (deficiency affects an estimated 3-43% of adults over 50, often from reduced stomach acid needed to absorb B12), vegetarians and vegans, people with autoimmune or digestive conditions like pernicious anemia, atrophic gastritis, celiac disease, or Crohn's disease, anyone who's had stomach or intestinal surgery, and people taking acid-reducing medications or metformin^[1]. If you fall into one of those groups, B12 or a broader B-Complex (which covers B12 alongside the other B vitamins involved in energy metabolism) is a reasonable, targeted choice. If none of that applies to you, more B12 on top of an already-sufficient diet isn't going to be the thing that fixes your afternoon slump.

Creatine: For Short-Burst Muscular Energy

Creatine's "energy" is specific and mechanical: it helps supply muscles with energy for short-term, predominantly anaerobic activity by boosting phosphocreatine stores, which speeds up how quickly your muscles can resynthesize ATP during intense effort^[2]. That translates into real, well-documented benefits for "repeated short bursts of high-intensity, intermittent activity, such as sprinting and weight lifting" — but the same research notes it offers "little value for endurance sports"^[2]. It's not something that makes you feel more alert or awake; it's fuel for muscles doing hard, brief work.

Typical protocols either use a loading phase — about 20g/day split into four 5g doses for 5-7 days, then 3-5g/day to maintain — or skip loading and go straight to 3-6g/day for a few weeks^[2]. It's considered safe for healthy adults with short-term use, and evidence suggests it's safe over several years too; the most common side effect is water-weight gain, with occasional reports of stomach upset that adequate hydration tends to minimize^[2]. For more on where it fits beyond the gym, see our piece on creatine: not just for bodybuilders.

Mushroom Complex: For Focus, Not a Jolt

Lion's mane, the mushroom behind Vita Globe's Mushroom Complex, is best understood through cognitive research rather than energy research. As we cover in depth in what the research actually shows about lion's mane and memory and focus, the evidence base here is about mental clarity and cognitive support — not a stimulant effect and not a substitute for caffeine. If what you're calling "low energy" is really more like brain fog or trouble concentrating, that's a different target than muscular fatigue or a nutrient deficiency, and it's the one mushroom complex is actually aimed at.

The honest summary

• B12 and B-Complex help fatigue caused by an actual deficiency — NIH is explicit that B12 doesn't add energy on top of an already-sufficient diet. They matter most for older adults, vegetarians/vegans, and people with absorption issues or on certain medications.
• Creatine supports short, intense bursts of muscular effort (sprinting, lifting) by speeding up ATP resupply — not general alertness, and not much help for endurance work.
• Mushroom complex (lion's mane) is about mental clarity and focus, not a physical energy jolt.
• None of these replace sleep, hydration, and consistent meals as the actual foundation of daily energy.

How to Choose

Start with what "low energy" actually feels like for you. Persistent tiredness or weakness, especially if you're over 50, vegetarian or vegan, or on medication that affects absorption, points toward B12 or B-Complex. Struggling through the last few reps or sprints in a workout points toward creatine. Feeling foggy, unfocused, or mentally flat rather than physically drained points toward mushroom complex. And if the honest answer is "I'm not sleeping enough" or "I skip meals," no supplement on this list is going to out-perform fixing that directly — see our energy overview for the fundamentals worth handling first.

Frequently Asked Questions

Will B12 give me energy even if I'm not deficient?

According to NIH, no — B12 doesn't provide energy, athletic performance, or endurance benefits in people who already get enough from their diet. It helps most when fatigue is actually being caused by a real B12 shortfall.

Does creatine make you feel more awake?

No. Creatine's benefit is mechanical — faster energy resupply in muscle tissue during short, intense effort. It isn't a stimulant and won't affect mental alertness the way caffeine does.

Can I take B-Complex, creatine, and mushroom complex together?

Generally yes, since they act through different, unrelated pathways — nutrient metabolism, muscular energy resupply, and cognitive support, respectively. If you take medication regularly or have a health condition, it's still worth checking with your doctor before combining new supplements.

How long does creatine take to work?

With a loading phase (about 20g/day for 5-7 days), effects on muscle phosphocreatine stores build quickly; without loading, a lower daily dose over a few weeks reaches a similar place more gradually.

Sources

1. National Institutes of Health, Office of Dietary Supplements. Vitamin B12: Fact Sheet for Consumers. ods.od.nih.gov/factsheets/VitaminB12-Consumer
2. National Institutes of Health, Office of Dietary Supplements. Dietary Supplements for Exercise and Athletic Performance – Health Professional Fact Sheet. ods.od.nih.gov/factsheets/ExerciseAndAthleticPerformance-HealthProfessional
3. Vita Globe. Lion's Mane Mushroom: What the Research Actually Shows About Memory and Focus.
4. Vita Globe. Vitamin B12 Gummies, Vitamin B-Complex Gummies, Sugar-Free Creatine Gummies, Mushroom Complex Gummies, Performance & Recovery Bundle, and Daily Vitality Duo — product formulations (verified against live product pages).

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. The content in this article is for informational purposes only and is not a substitute for professional medical advice.