SYNC

How we recommend

Take what you need. Skip what you don't. Here is how a SYNC plan is built, how we choose products, and how we earn money.

1. Your plan comes from written rules, not guesses

Every answer you give maps to written rules in the SYNC rulebook: which nutrients it points to, how strongly, and which safety checks apply. The same answers always give the same plan, and every suggestion can be traced back to the rules behind it. The rulebook is written to be checked and changed by doctors and dietitians.

Review status: the rulebook is being reviewed by a qualified clinician before launch (0 of 148 rules signed off so far). Until then, plans are automated suggestions.

2. Safety comes before suggestions

• Under-18s, pregnancy and breastfeeding: no products; we ask you to speak to a doctor.
• Medicines and conditions such as thyroid disease, blood thinners, diabetes, kidney or liver disease: products that may interact are left out or marked "check with a doctor first".
• Answers that need a doctor, such as daily symptoms or very heavy periods, send the plan to a doctor first, and we tell you why.
• Some nutrients, such as iron, are only suggested after a blood test confirms a need.

3. Less is more

A plan has at most four recommended products and two to consider. Two products in a plan never contain the same ingredient. If your answers don't point to any supplement, the plan says so and gives you daily habits instead.

4. We show more than one brand

For each ingredient we list two or three products from different brands, with what's in them, the pack, the price and where to buy. Products are ordered by fit, by whether their buy link has been checked, and by how focused they are on the nutrient you need.

5. How SYNC earns money

• The assessment and plan are free.
• Some product links are affiliate links: if you buy, SYNC may earn a small commission at no extra cost to you. Prices are the seller's own; SYNC doesn't mark them up.
• SYNC lists Qbit products and may earn from their sale. Where a Qbit product fits your plan, it is listed first, with options from other brands alongside, and you are free to choose any of them.
• No brand pays to be recommended. A product only appears in your plan when the rules say its ingredient fits your answers.

6. What a plan is not

SYNC is not a medical service. A plan is not a diagnosis, and a single low value or symptom doesn't mean you have a deficiency. Doses are always "as per label". If you take medicines or have a health condition, check with your doctor before starting any supplement.