Many pages list a set number of risk factors for metabolic syndrome. Five checks you can run on any such list follow, using the CDC's diabetes basics page as one source to read first.
Check 1: who wrote the list
Find the publisher and read how it describes itself. A public health agency, a medical society and a seller can each publish a list with the same heading. Note which one you are reading.
Check 2: what the list counts
Write down each item on the list in the page's own words. Then see whether another source uses the same items and the same words. If the lists differ, the difference is the first thing to ask about.
Check 3: how the page describes risk
A page may say an item "causes" metabolic syndrome, "raises the chance of it" or only "is linked to it". These are different claims. The NHLBI guide to heart-healthy living is one source to compare wording against.
Check 4: what the page says you can change
Some pages mix items you can act on with items you cannot. See whether the page separates them. The CDC page on preventing type 2 diabetes is written about prevention, which makes it a useful contrast.
Check 5: whether weight is described carefully
Weight comes up on many lists. Read how the source words it, and compare it with the Endocrine Society obesity page. Note whether each page gives a definition or only uses the word.
Keeping the differences you find
Run the five checks on the lists you have found and keep the differences. Take them to your own clinician and ask which items apply to you. These checks compare wording across sources and do not stand in for a clinician's view of your own numbers.