Order protocol
Sleep & recovery Whole topic
Hormones & energy Whole topic
Metabolism & nutrition Whole topic
Brain & mind Whole topic
Longevity & body Whole topic
Women & family Whole topic
Basics & environment Whole topic
Biohacking & technology Whole topic
Fénix Methode

Tired of generic advice? A protocol built on your numbers.

Order protocol
All articles Every article is based on a chapter of the book NAVRHNUTÝ and peer-reviewed studies.
Biohacker score2 minutes – find out where your body holds you back Results checkNormal vs. optimal for your blood values Biological ageHow old your body is – from 9 blood values CalculatorsBMI, waist, protein, sleep, caffeine, VO2max Daily helperDaily routines, light, sleep and breathing on your phone My stackCheck supplements & medication + daily plan ChallengesSmall daily habits with reminders Fitness testVO2max, fitness age, strength and balance at home Biological twinAll your data in a 3D body What to get testedPrintable list of blood tests Sample protocolSee what you get E-numbers & sugarsWhat is on the label and what to avoid Online advisorAnswers to common questions about body and results SupplementsForms, timing and combination check RecipesMeals without hidden sugars or needless additives GlossaryBiohacking explained from A to Z Gift voucherGive health – the protocol or the book
← All supplements
VitaminsWeak evidence

Brewer's yeast

Also known as: Saccharomyces cerevisiae, inactive yeast

Brewer's yeast is inactivated Saccharomyces cerevisiae yeast that provides B vitamins, protein, chromium and selenium. It is traditionally used for hair, nails and skin, but evidence for these effects is weak.

What it is used for

  • supplying B vitamins – mainly useful with a poor diet; content depends on the product
  • hair, nails and skin – weak evidence
  • blood sugar support (via chromium) – weak evidence, small studies

Forms and how they differ

tablets

convenient, nutrient dose is fairly low

powder or flakes

can be added to food; more nutrients per serving

fortified yeast (e.g. with B12, zinc, selenium)

composition depends on the label; unfortified yeast is not a reliable B12 source

When to take it

With food, any time of day.

Pairs well with

A varied diet, protein, zinc.

Do not combine / separate

Avoid it if you take MAOI antidepressants (tyramine content). Take care when combining with diabetes medicines.

Watch out for

Not suitable with yeast allergy, Crohn's disease or weakened immunity. With gout (purines), diabetes, in pregnancy or when taking medicines, consult your doctor.

Safety

Usually well tolerated; may cause bloating. Do not exceed the label dose.

Practical tip

If you take it for hair, give it at least 2–3 months and have your iron and thyroid checked as well.

Products containing Brewer's yeast 2

Brewer's yeastwholeHair & nailsSkinEnergyBlood sugar & metabolism
Brewer's yeastwholeHair & nailsSkinEnergyBlood sugar & metabolism
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence

Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.

Combination check

Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.

Check Brewer's yeast with others

Which supplements do you actually need?

Fénix Methode picks them from your blood results and schedules when to take what – no needless purchases.

Learn about Fénix Methode

From the same group

B complexModerate evidenceBeta-caroteneWeak evidenceBiotinWeak evidenceCamu camuWeak evidenceCholineModerate evidenceFolateStrong evidence
Important notice

This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.