Which Supplement Fits Your Goal? The Big Overview

The short answer: start with the goal, not the product. Someone who wants to “sleep better” needs different nutrients than someone who hits a slump at midday or catches every other cold in winter. Further down you’ll find a goal-to-nutrient table that helps you find the right starting point in two minutes – and jump straight from there into our detailed guides.

We are a family business and have stood for supplements “made in Germany” since 2012. In that time we have seen one thing again and again: most bad purchases don’t happen because a product is poor, but because it doesn’t match the actual concern at all. That’s exactly what we want to prevent here.

Why “thinking from the goal” works so much better

Most people buy supplements exactly the wrong way round: they see a product that’s currently trending and look for a reason to take it afterwards. In doing so, the actual concern often falls by the wayside. Those who instead start with the goal – “I sleep badly”, “I lack energy in the afternoon”, “I want to support my skin” – almost automatically end up with the right nutrients and leave the rest on the shelf. That saves money and prevents ten half-empty tubs from piling up in the cupboard. That’s exactly what this guide is built for.

Do you even need supplements?

An honest answer up front: not necessarily. The foundation is always a balanced diet, enough sleep and exercise. Supplements become useful when there is an increased need or a genuine gap – for example vitamin D in the dark months, iron in the case of a proven deficiency, B12 on a vegan diet, or nutrients during special stages of life. Whether the expense is worth it for you is examined honestly in Worth it or a waste of money?.

The smartest first step is therefore often a blood test instead of supplementing “on suspicion”. It shows you in black and white where you stand – and whether supplementation is needed at all. If you’re just starting out, our guide Supplements for beginners will help you, and you can avoid typical beginner mistakes with Common mistakes with supplements.

Your goal → the right solution

Find your concern in the left column and jump straight to the matching guide. The nutrients listed are a starting point, not a shopping list – in the respective guide we explain dosage, form and what matters.

The basis for almost everyone: vitamin D3+K2 and magnesium

If you don’t know where to start, two classics of basic supply are a good choice. Vitamin D contributes to the normal function of the immune system and to the maintenance of normal bones – especially between October and March, when the sun in our latitudes is too low for the skin to produce enough. Magnesium contributes to normal muscle and nerve function as well as to the reduction of tiredness and fatigue, and is involved in over 300 enzymatic reactions in the body.

Both cover broad basic functions and are well tolerated. With vitamin D, a test beforehand is worthwhile to find the right dose – how to interpret the blood value is explained in Vitamin D: dosage based on blood value. Which form of magnesium suits you is clarified in Which magnesium is the best?.

What research is investigating

A lot of research is being done around many nutrients. What is especially well documented and textbook-solid is the role of vitamins and minerals as essential nutrients: the body cannot produce them itself (or not in sufficient amounts) and depends on their intake. For these basic functions there are officially authorised statements in the EU (see below).

For plant substances and adaptogens such as ashwagandha or rhodiola, research is still investigating which effects appear and through which mechanisms they work – here much is promising, but not conclusively clarified. We draw this honest distinction between “established” and “under research” in every single guide, so you know what you can rely on.

Authorised statements: what you can rely on

For many vitamins and minerals there are verified, officially authorised health claims. Examples that help you with your goal selection:

• Vitamin C contributes to the normal function of the immune system and increases iron absorption.
• Zinc contributes to normal skin, hair and nails as well as to the normal function of the immune system.
• Iron contributes to the reduction of tiredness and fatigue as well as to the normal formation of red blood cells.
• Biotin contributes to the maintenance of normal hair and skin.

Such statements are not marketing phrases but officially verified – a reliable compass when you move from the goal to the nutrient.

What you should always check regarding quality

It’s not the lowest price that decides, but quality. Our checklist – and yours:

• Clearly dosed, standardised active ingredients (e.g. withanolides in ashwagandha, OPC in grape seed).
• A pure formulation without unnecessary additives and release agents – how to recognise them is shown in Recognising additives.
• Lab-tested, including for heavy metals – why that matters is explained in Lab-tested: what does that mean?.
• Manufactured in Germany with transparent origin.

Choose by life situation instead of by trend

Your needs depend less on the latest Instagram hype than on your everyday life. A few typical scenarios:

• You train 4×/week: magnesium, electrolytes and – depending on your diet – protein come into focus. More in Nutrients for strength training.
• You follow a vegan diet: B12 is a must, often together with iron, omega-3 (algae oil) and vitamin D – see Nutrients for vegans and Covering B12 on a vegan diet.
• In the office at a screen: eyes, concentration and lack of movement are the themes – read up in Nutrients for the office.
• Woman over 40: hormonal changes and bone health come into focus – Nutrients for women over 40.

The advantage: those who start from their own everyday life buy more purposefully and save themselves expensive mistakes.

Honestly assessed: what supplements can – and cannot – do

Supplements can close a gap or cover an increased need. What they cannot do: make up for an unbalanced diet, too little sleep or a lack of exercise. No preparation turns fast food into a good foundation. Those who benefit most are people who actually lack something – hence the repeated advice to get a blood test. Those who eat healthily and have no special life situation often need less than the shelves suggest. This honest stance is not a contradiction to selling, but the basis for satisfied customers who come back.

Combine sensibly – without overdoing it

More is not automatically better. Go for a lean, targeted selection instead of ten preparations in parallel. Some combinations complement each other (vitamin D with K2, iron with vitamin C), others interfere with each other and should be separated in time (such as calcium and iron). An overview is given by Combining correctly and Which supplements not together?. Whether a multi-preparation or single preparations suit you better is clarified in Multivitamin vs. single preparations.

Matching categories at Scheunengut

Browse by your goal: Vitamins, Minerals, Immune system and Sleep & inner calm. An overall overview is offered by All products – lab-tested and made in Germany.

Frequently asked questions (FAQ)

What’s the best way to start as a beginner?

Best of all with your specific goal and – where sensible – a blood test. For many, the basic supply of vitamin D3+K2 (especially in winter) and magnesium is a solid start, because both cover broad functions and are well tolerated. Supplement in a targeted way instead of taking many preparations at once.

Do I really need a preparation for my goal?

Not necessarily. The basis is always the diet. Supplementation becomes useful in the case of an increased need or a proven gap, such as vitamin D in winter, iron in the case of a deficiency, or B12 on a vegan diet. A blood test provides clarity before you supplement “on suspicion”.

Can I combine several supplements?

In principle yes, but in a targeted way. Some combinations complement each other (vitamin D with K2, iron with vitamin C), others should be separated in time. Keep the selection lean and follow our guides on combining and separating.

How do I recognise a high-quality product?

By clearly dosed, ideally standardised active ingredients, a pure formulation without unnecessary additives, independent lab testing (including for heavy metals) and transparent origin. Price alone is not a mark of quality.