Fatigue and low energy: which vitamins to choose and what to check first

Quick answer

The EU claim on the reduction of tiredness and fatigue exists for iron, magnesium, vitamin C and six B vitamins, but if you feel tired all the time, start with your sleep, your diet and a blood test for iron and vitamin B12, and only then choose a food supplement. Iron contributes to the reduction of tiredness and fatigue. Vitamin B12 contributes to the reduction of tiredness and fatigue. In the Stivits range these are Iron Complex with 27 mg of iron per tablet, Methylcobalamin Vitamin B12 1000 mcg and Magnesium MALATE 2000mg with 230 mg of magnesium per tablet. If you want caffeine in a capsule, there is Energy Complex: 100 mg of caffeine, a little more than a cup of filter coffee. A varied and balanced diet and a healthy lifestyle are important.

Stivits products compared by the numbers

Here are nine Stivits products for tiredness and low energy. The serving is in the row name, and all numbers are per serving.

Stivits product, daily servingIronVitamin B12CaffeineWhat else is in the servingLasts
Iron Complex, 1 tablet27 mg25 µgNoneB6 5 mg, B9 250 µg, zinc 10 mg, copper 1.2 mg90 days
Methylcobalamin Vitamin B12 1000 mcg, 1 tabletNone1000 µgNoneNone120 days
B6+B9+B12 Vitamins, 1 tabletNone1000 µgNoneB6 1.5 mg, B9 400 µg90 days
B-Complex Strength formula, 1 tabletNone1 µgNoneB1 1.4 mg, B2 1.6 mg, B3 18 mg, B5 6 mg, B6 2 mg, folic acid 200 µg, biotin 150 µg180 days
Magnesium MALATE 2000mg, 1 tabletNoneNoneNoneMagnesium 230 mg, B6 2.5 mg90 days
Energy Complex, 1 capsuleNone10 µg100 mgB6 2 mg, chromium 15 µg, guarana extract 18.75 mg, green tea extract 2.5 mg90 days
Guarana 800 mg with Caffeine, 1 tabletNoneNoneFrom guaranaGuarana extract 4:1, 200 mg120 days
Maca Root 2500 mg, 1 capsuleNoneNoneNoneMaca extract 10:1, 250 mg90 days
Panax Ginseng Extract 2100mg, 1 capsuleNoneNoneNoneGinseng extract 35:1, 60 mg90 days

Of these nine products, only Iron Complex contains iron. Two products contain caffeine; the other seven do not.

Which vitamins have an EU claim on fatigue

The EU claim on the reduction of tiredness and fatigue exists for iron, magnesium, vitamin C and six B vitamins. Each one is listed in the EU register of claims and applies only if the serving contains at least the threshold amount of the substance. Every dose below meets that threshold.

SubstanceClaim from the EU registerStivits product, dose per serving
IronIron contributes to the reduction of tiredness and fatigue.Iron Complex, 27 mg in 1 tablet
Vitamin B12Vitamin B12 contributes to the reduction of tiredness and fatigue.Methylcobalamin, 1000 µg in 1 tablet
MagnesiumMagnesium contributes to a reduction of tiredness and fatigue.Magnesium MALATE, 230 mg in 1 tablet
Vitamin CVitamin C contributes to the reduction of tiredness and fatigue.Vitamin C 1000 mg, 1000 mg in 1 tablet
Vitamin B6Vitamin B6 contributes to the reduction of tiredness and fatigue.B-Complex Strength formula, 2 mg in 1 tablet
Riboflavin (B2)Riboflavin contributes to the reduction of tiredness and fatigue.B-Complex Strength formula, 1.6 mg in 1 tablet
Niacin (B3)Niacin contributes to the reduction of tiredness and fatigue.B-Complex Strength formula, 18 mg in 1 tablet
Pantothenic acid (B5)Pantothenic acid contributes to the reduction of tiredness and fatigue.B-Complex Strength formula, 6 mg in 1 tablet
Folate (B9)Folate contributes to the reduction of tiredness and fatigue.B6+B9+B12 Vitamins, 400 µg in 1 tablet

Vitamin B1 and biotin are also in the B-Complex Strength formula, but they have no claim on fatigue. Iron contributes to normal oxygen transport in the body. Vitamin B12 contributes to normal red blood cell formation.

What to check before buying food supplements for fatigue

Start with sleep, water, movement and stress. MedlinePlus, the reference site of the US National Institutes of Health (NIH), advises getting enough sleep, eating a balanced diet, drinking enough water, being active regularly and reducing stress. Fatigue has many causes, and not all of them are a matter of nutrition.

The next step is a blood test together with a doctor. A ferritin test shows whether enough iron is stored in the body. A doctor orders a test for vitamin B12 and folate when there are signs that these vitamins are low.

When to see a doctor about fatigue

See a doctor if the fatigue came on for no clear reason, especially together with a fever, weight loss or regular sweating. Frequent headaches, waking in the night, low mood and medicines that make you drowsy are also reasons to book an appointment.

Get help at once if you have confusion, dizziness, blurred vision, very little urine, new swelling with weight gain or thoughts of harming yourself. This is the MedlinePlus (NIH) list. A food supplement is no substitute for an examination.

Iron or vitamin B12: which to choose

The choice depends on your test results and your lifestyle. Make the decision about an iron food supplement together with your doctor, based on the test result. Talk to your doctor about vitamin B12.

Iron. Iron Complex from Stivits has 27 mg of iron in the form of bisglycinate, plus B6 5 mg, B9 250 µg, B12 25 µg, zinc 10 mg and copper 1.2 mg. The trade-off: without a test you are guessing. Some people have too much iron in the body, and for them iron food supplements are ruled out. During pregnancy and after childbirth a doctor decides the iron dose.

Vitamin B12. It is found in fish, meat, poultry, eggs and dairy products. Methylcobalamin and Cyanocobalamin from Stivits give 1000 µg per tablet and are suitable for vegans. B6+B9+B12 Vitamins give the same 1000 µg plus B6 1.5 mg and B9 400 µg. The trade-off: these tablets contain no iron.

What to take iron with

Wash the iron tablet down with water, not black tea. MedlinePlus writes that black tea contains substances that bind the iron from food. Vitamin C increases iron absorption. You can get it from food or from a tablet of Vitamin C 1000 mg, 1 tablet a day with a meal.

Keep the pack of Iron Complex out of the reach of children. MedlinePlus warns that children can be poisoned if they swallow many iron tablets.

How much caffeine a day: Stivits, coffee and tea

One capsule of Stivits Energy Complex contains 100 mg of caffeine; a cup of filter coffee contains about 90 mg. EFSA sees no safety concerns for healthy adults at a single dose of up to 200 mg and up to 400 mg a day from all sources. The figures for coffee and tea below are also from EFSA.

Source of caffeine, servingCaffeine
Stivits Energy Complex, 1 capsule100 mg
Cup of filter coffee, 200 mlAbout 90 mg
Espresso, 60 mlAbout 80 mg
Energy drink, 250 ml canAbout 80 mg
Cup of black tea, 220 mlAbout 50 mg
Single dose for a healthy adult, EFSAUp to 200 mg
Daily dose for a healthy adult, EFSAUp to 400 mg

Caffeine from the capsule adds to the coffee, tea and energy drinks you have during the day. In some adults 100 mg shortly before bed affects sleep, so do not take the capsule in the evening. During pregnancy and breastfeeding EFSA gives a limit of 200 mg a day from all sources. Energy Complex is not recommended then, or for children. Guarana 800 mg is also not recommended during pregnancy and breastfeeding.

The trade-off with caffeine: it does not remove the cause of fatigue. MedlinePlus says plainly that stimulants, including caffeine, do not fix fatigue, and it can get worse once you stop them.

Guarana

Guarana (Paullinia cupana) helps to maintain alertness and concentration. Guarana helps to maintain energy and vitality. One tablet of Guarana 800 mg from Stivits contains guarana extract 4:1, 200 mg, equivalent to 800 mg of guarana.

Maca and Korean ginseng: options without caffeine

If you choose plant-based products without caffeine, the range includes maca and Korean ginseng. Maca helps to maintain energy and vitality. Korean ginseng helps to maintain energy and vitality. The trade-off: these capsules contain no vitamins or minerals.

  • Maca Root 2500 mg. Extract 10:1, 250 mg per capsule, equivalent to 2500 mg of root. 1 capsule a day with a meal, lasts 90 days.
  • Panax Ginseng Extract 2100mg. Extract 35:1, 60 mg per capsule, equivalent to 2100 mg of ginseng. 1 capsule a day with a meal, lasts 90 days.

If you train hard, see the separate guide on creatine monohydrate.

Coenzyme Q10: composition only

Coenzyme Q10 100 mg is a substance found in the cells of the body. 100 mg per capsule, 1 capsule a day with a meal, lasts 60 days. There is no authorised EU claim on coenzyme Q10. Only the composition is given here.

How to choose a product: by situation

Find your situation in the table.

Your situationWhere to startStivits product, servingTrade-off
You want B12 in a tablet suitable for vegansA test for B12Methylcobalamin, 1000 µg in 1 tabletNo iron in the tablet
You want B12 with B6 and B9A test for B12B6+B9+B12 Vitamins, 1000 µg of B12 in 1 tabletNo iron in the tablet
You want iron in a tabletA ferritin testIron Complex, 27 mg of iron in 1 tabletWithout a test the dose is chosen blind
You want B vitamins in one tabletSee what you already takeB-Complex Strength formula, 1 tabletB12 is only 1 µg, 1000 times less than in Methylcobalamin
You want caffeine in a capsuleCount the coffee and tea you have in a dayEnergy Complex, 100 mg of caffeine in 1 capsuleCaffeine adds to coffee and tea and does not remove the cause of fatigue
You want a plant-based option without caffeineCheck your sleep and dietMaca Root, 250 mg of extract in 1 capsuleNo vitamins or minerals in the capsule

FAQ

Which vitamins should I take for fatigue?

The EU claim on the reduction of tiredness and fatigue exists for iron, magnesium, vitamin C and six B vitamins: B2, B3, B5, B6, B9 and B12. Iron contributes to the reduction of tiredness and fatigue. Vitamin B12 contributes to the reduction of tiredness and fatigue. From Stivits these are Iron Complex with 27 mg of iron and Methylcobalamin with 1000 µg of vitamin B12 per tablet. Choose after a blood test and a talk with your doctor.

Which tests should I have for fatigue?

Have a blood test and discuss the result with a doctor. A ferritin test shows iron stores, and a B12 and folate test is ordered when there are signs that these vitamins are low. Have the tests before you start iron or B12 tablets. Stivits Iron Complex has 27 mg of iron per tablet; do not take such a dose at random.

Which vitamin am I missing if I feel tired all the time?

Tiredness alone cannot tell you: there are many causes, from sleep and stress to illness, and some of them no food supplement will solve. A blood test and a doctor give the answer. If the result shows low iron or B12, your doctor can say whether a supplement is needed. Stivits Iron Complex has 27 mg of iron and Methylcobalamin 1000 µg of B12 per tablet.

Which vitamins for fatigue suit women and men?

The EU claims on tiredness and fatigue are not split by sex: for iron, magnesium, vitamin C and the B vitamins they are the same. From Stivits these are Iron Complex with 27 mg of iron, Methylcobalamin with 1000 µg of B12 and Magnesium MALATE with 230 mg of magnesium per tablet. In pregnancy and breastfeeding the iron dose is decided by a doctor.

How much caffeine is in Stivits Energy Complex?

One capsule of Stivits Energy Complex contains 100 mg of caffeine, and a pack of 90 capsules lasts 90 days. According to EFSA, a 200 ml cup of filter coffee contains about 90 mg of caffeine and a 60 ml espresso about 80 mg. Adults take 1 capsule once a day.

How much caffeine can I have a day?

EFSA sees no safety concerns for healthy adults at a single dose of up to 200 mg and up to 400 mg a day from all sources. During pregnancy and breastfeeding the limit is 200 mg a day. A Stivits Energy Complex capsule gives 100 mg; add the coffee and tea you have during the day.

Can I take iron with tea?

Not with black tea; take it with water. MedlinePlus (NIH) writes that black tea contains substances that bind the iron from food. Vitamin C increases iron absorption. Stivits Iron Complex has 27 mg of iron in a tablet, and Stivits vitamin C has 1000 mg in a tablet.

What is the difference between methylcobalamin and cyanocobalamin?

They are two forms of vitamin B12. Both Stivits tablets give 1000 µg, a pack of 120 tablets lasts 120 days, and both are suitable for vegans. Cyanocobalamin is taken with a meal; Methylcobalamin has no such condition. Take 1 tablet a day of either form.

What does Stivits offer without caffeine?

Without caffeine, Stivits has Iron Complex with 27 mg of iron, Methylcobalamin with 1000 µg of B12 and Magnesium MALATE with 230 mg of magnesium per tablet. Among plant products there is maca, 250 mg of extract 10:1 per capsule. Maca helps to maintain energy and vitality.

What is in a capsule of Stivits Coenzyme Q10?

Coenzyme Q10 is a substance found in the cells of the body. A Stivits capsule contains 100 mg; take 1 capsule a day with a meal, and a pack lasts 60 days.

Can I take coenzyme Q10 and iron together?

The Stivits product data contain no ban on taking them together: Coenzyme Q10 100 mg and Iron Complex with 27 mg of iron are each taken once a day. NCCIH (NIH) writes that coenzyme Q10 may interact with some medicines. If you take any, ask a doctor first.

Who makes Stivits food supplements?

Stivits is a brand of the Estonian company HYPERPHARM OÜ (Tallinn). The supplements are made in Europe, in the EU, in a factory certified to GMP, HACCP and ISO 22000:2018. Stivits sells direct from the factory, with no wholesalers or pharmacies in between.

Stivits products

Stivits sells everything below direct from the manufacturer: a European factory, ISO 22000:2018 and GMP. We dispatch your order by the next working day.

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  • Magnesium for sleep: which one to choose and what the EU register allows us to say about falling asleep: Magnesium for sleep: the EU register has no claim linking magnesium and sleep, and NIH notes that there is very little research on the subject. If you still want magnesium, Stivits has bisglycinate (3 capsules: 300 mg of magnesium and 7.5 mg of vitamin B6), citrate (2 tablets: 400 mg and 10 mg of B6) or 1 tablet of malate (230 mg and 2.5 mg of B6). If falling asleep is what matters to you, among Stivits products only Melatonin 1 mg has an EU register claim on it: melatonin contributes to the reduction of time taken to fall asleep. The beneficial effect is obtained with the intake of 1 mg of melatonin shortly before going to bed.
  • Vitamins for immune support: C, D3, zinc and selenium, how to compare doses: Which vitamins support the immune system: the EU register authorises the claim about the normal function of the immune system for 10 substances: vitamins A, B6, B12, C and D, folate, zinc, copper, iron and selenium. The simplest choice at Stivits is Immuno Support: vitamin C 1000 mg, vitamin D3 25 µg (1000 IU) and zinc 15 mg in 1 tablet, and 90 tablets last 90 days. Vitamin C contributes to the normal function of the immune system. Vitamin D contributes to the normal function of the immune system. Zinc contributes to the normal function of the immune system. A varied and balanced diet and a healthy lifestyle are important.
  • Creatine monohydrate: how to take it, how much a day and whether you need loading: Creatine monohydrate is taken at 3 g of creatine a day, and loading is not needed for this. Creatine increases physical performance in successive bursts of short-term, high intensity exercise. The beneficial effect is obtained with a daily intake of 3 g of creatine. The claim applies to adults performing high intensity exercise. Creatine Monohydrate 100% from Stivits is a food supplement that gives 3 g of creatine in 1 scoop of 3.4 g of powder. It is an unflavoured powder with no additives, suitable for vegans, in a pack of 500 g with 147 servings. A varied and balanced diet and a healthy lifestyle are important.

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