What Are the Best Supplements for Energy? Top Vitamins & Minerals

Feeling tired from time to time is normal, but persistent low energy can sometimes be linked to poor nutrition or a vitamin or mineral deficiency.

While supplements aren't a substitute for a balanced diet or medical advice, certain nutrients can help support normal energy-yielding metabolism and reduce tiredness and fatigue.

Let's explore the best supplements for energy and when they may help.

Key Takeaways

• Persistent tiredness isn't always caused by a vitamin deficiency, so it's important to consider factors such as sleep, diet, stress, lifestyle, or underlying health conditions before choosing a supplement.
• Some of the best supplements for energy include vitamin B12, vitamin C, vitamin D, iron, and magnesium, each supporting energy levels and overall well-being in different ways.
• The best energy supplement depends on your individual nutritional needs, so choosing the right nutrient is more important than simply taking multiple supplements.
• Energy supplements don't work instantly. Noticeable benefits often take several weeks and are most likely when correcting an existing nutrient deficiency.

Before You Reach for an Energy Supplement

Before choosing an energy supplement, it's important to remember that fatigue can have many causes.

Low energy can result from:

• Poor sleep
• Stress
• A busy lifestyle
• Low activity levels
• Poor nutrition and nutrient deficiencies
• Certain medications
• An underlying health condition

If your tiredness is severe, persistent, or unexplained, it's important to speak to your GP rather than relying solely on supplements.

For many people, however, supplements can help support normal energy metabolism or correct a nutritional deficiency where appropriate.

The Best Vitamins for Energy & Tiredness

1. Vitamin B12

Vitamin B12 is one of the most well-known vitamins for energy and tiredness, and for good reason.

It contributes to:

• Normal energy-yielding metabolism
• The reduction of tiredness and fatigue
• The normal functioning of the nervous system
• Normal psychological function

These functions all play a role in helping your body use energy efficiently. Vitamin B12 helps convert the food you eat into usable energy, while also supporting your nervous system and psychological function, both of which can influence how energetic you feel.

People following a vegan diet, older adults, and anyone with certain digestive conditions may be more likely to have lower vitamin B12 levels.

If you're often feeling tired and your B12 intake is low, supplementation may help restore healthy levels. However, taking extra vitamin B12 won't provide an instant energy boost if your levels are already adequate.

Read also: What Does Vitamin B Do?

Our Top Vitamin B12 Pick

Why we recommend it:

• Provides 1,000mcg of vitamin B12 (methylcobalamin) per tablet
• High-strength formula in an easy-to-take one-a-day tablet
• Suitable for vegetarians and vegans

2. Vitamin C

Although vitamin C isn't an energy vitamin in the same way as vitamin B12, it still has an important supporting role.

Vitamin C contributes to:

• Normal energy-yielding metabolism
• Normal immune system function
• The reduction of tiredness and fatigue by increasing iron absorption
• Normal collagen formation

Vitamin C doesn't directly increase energy levels. Instead, it helps your body absorb iron more effectively. Since iron contributes to normal energy-yielding metabolism and the reduction of tiredness and fatigue, getting enough vitamin C may indirectly support healthy energy levels, particularly if your iron intake is low.

This makes it particularly useful for people taking iron supplements, as adequate vitamin C helps improve the absorption of dietary iron.

Read also: Vitamin C Benefits: Skin, Immunity & Everyday Energy.

Our Top Vitamin C Pick

Why we recommend it:

• Provides 500mg of vitamin C per tablet
• Low-acid ("gentle") formula, designed to be kinder on the stomach than standard vitamin C tablets
• Convenient one-a-day supplement
• Ideal for individuals with sensitive stomachs

3. Vitamin D

Vitamin D is often associated with bone health and immunity rather than energy itself.

It contributes to:

• The normal function of the immune system
• The maintenance of normal bones, muscles, and teeth

Vitamin D isn't authorised to claim that it directly boosts energy or reduces tiredness. However, maintaining healthy vitamin D levels supports normal muscle function and overall well-being, which can be important for staying active, particularly during the autumn and winter months.

People in the UK are commonly advised to consider vitamin D supplementation during the autumn and winter months when sunlight exposure is reduced.

Read also: The Surprising Benefits of Vitamin D.

Our Top Vitamin D Pick

Why we recommend it:

• Provides 1,000IU (25μg) of vitamin D3 per tablet
• One-a-day formula that's easy to incorporate into your daily routine
• Free from gluten, wheat, soya, dairy, yeast, artificial colours, and flavourings
• Suitable for vegetarians

The Best Minerals for Energy & Tiredness

1. Magnesium

Magnesium is involved in hundreds of processes throughout the body and is one of the most popular supplements for fatigue.

It contributes to:

• Normal energy-yielding metabolism
• The reduction of tiredness and fatigue
• Normal muscle function
• Normal psychological function
• The normal functioning of the nervous system

Magnesium helps your body release energy from the food you eat while supporting normal muscle, nerve, and psychological function. If your magnesium intake is low, you may experience tiredness, muscle cramps, or weakness.

So, restoring healthy magnesium levels may help reduce fatigue and support normal everyday energy metabolism.

Our Top Magnesium Pick

Why we recommend it:

• Provides 375mg of magnesium per tablet
• One-a-day, easy-to-swallow tablet for convenient daily use
• 180-tablet pack, providing excellent long-term value
• Suitable for vegetarians and vegans

Read also: Which Magnesium Supplement Should You Take? UK Guide.

2. Iron

Iron is one of the most important minerals to consider if you're experiencing fatigue, particularly if blood tests have confirmed an iron deficiency.

Iron contributes to:

• Normal formation of red blood cells and haemoglobin
• Normal oxygen transport around the body
• Normal energy-yielding metabolism
• The reduction of tiredness and fatigue

Iron helps your body transport oxygen to tissues and supports the normal release of energy from food. Because of this, low iron levels can leave you feeling tired, weak, or lacking in energy.

If you're unsure whether iron deficiency could be contributing to your symptoms, understanding more about the role of iron in the body can be a helpful starting point.

If a deficiency is confirmed, iron supplementation may help restore healthy iron levels and reduce fatigue.

However, iron supplements should only be taken if they're appropriate for you, as too much iron can also be harmful.

Our Top Iron Supplement Pick

Why we recommend it:

• Provides 14mg of iron, alongside vitamin C, vitamin B12, and folic acid
• Sustained-release formula for gradual release and optimal nutrient absorption
• Contains British Pharmacopoeia quality iron
• Designed to be gentle on the stomach compared with some standard iron supplements
• Suitable for vegetarians and vegans, pregnant women, and athletes/swimmers

Top Supplements for Energy — Final Thoughts

The best supplements for energy are those that address your individual nutritional needs.

While vitamins and minerals won't replace a balanced diet or treat every cause of tiredness, nutrients such as vitamin B12, vitamin C, or D, iron, and magnesium can help support normal energy-yielding metabolism and contribute to the reduction of tiredness and fatigue where appropriate.

Browse our range of vitamins and supplements to find high-quality products that support your everyday health and well-being!