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Ask what was tested, in whom, against what, and for how long. One striking result rarely settles a health question.
One week a food is a must-have. The next week it is something to avoid. Before changing your diet or buying a supplement, open the research behind the headline. A few simple questions can help you decide how much weight to give it.
1. Find the research behind the claim
Look for a linked paper or an official research summary, not a chain of posts repeating one another. NCCIH encourages readers to ask whether an approach was tested in humans, whether participants resembled the intended audience, and whether the study lasted long enough to inform its claims. Laboratory or animal findings can be useful starting points, but they are not automatically advice for people. [1]
2. Separate a relationship from a cause
If people who eat a certain food also have a different health outcome, the food may not be the only difference between those groups. Ask how the study dealt with other explanations. A randomized comparison can answer some causal questions more directly, but its size, execution, and relevance still matter. NIH explains why researchers use different clinical study designs and why the comparison matters. [2]
3. Ask whether the size of the result matters
Here is a hypothetical example, not a real study: an event occurs in two of every 100 people in one group and one of every 100 in another. That can be described as a 50% relative reduction, but the absolute difference is one percentage point. Both descriptions refer to the same numbers. Always ask for the baseline and the actual outcome, not just the biggest percentage.
4. Look for the missing context
Was the result measured directly, or was it a short-term biomarker? Were benefits and unwanted effects both reported? Does other research agree? NCCIH's checklist highlights sample size, meaningful outcomes, limitations, replication, and financial interests. A funding disclosure is a reason to examine a study carefully, not automatic proof that it is wrong. [1]
How we apply this in the Journal
We separate published findings from our interpretation, link the sources, and label research updates by their actual dates. New does not necessarily mean better. Sometimes a paper gives us a useful question to explore, not a reason to change what we eat or how we train.
Xtinction Nutrition sells supplements, so our own articles deserve the same scrutiny. These explainers are educational starting points, not systematic reviews or substitutes for professional care.
Sources & further reading
Educational information for adults, not personalized medical, nutrition, or training advice. Draft prepared with AI assistance; editorial and qualified subject-matter review pending. Xtinction Nutrition sells supplements. Cited organizations and researchers do not endorse this publication or our products.
