What it is
Treating natural as a synonym for good, safe, or right.
In the wild
It is natural, so it is safe.
How to answer it
Name a natural thing that is harmful. The category does not track safety.
Values and premises
Appeal to nature
Also called Natural is better
In depth
Origin and naming
The habit is ancient — Greek writers treated the 'laws of nature' as norms for conduct, not just descriptions of it. As a named fallacy it belongs to the twentieth century, when philosophers disentangled it from G. E. Moore's related 'naturalistic fallacy' in Principia Ethica (1903).
More places it shows up
The supplement ad lingers on rainforest leaves and calls the capsule 'completely natural' — as if the source of an ingredient settles the question of what it does to you.
In the school-board debate a parent argues against the new canteen menu because the vegetables are 'grown in a lab', not because of anything on the nutrition sheet.
A colleague insists the three-day hike with no phone signal must be 'healthier' than the gym because it's 'how humans evolved to move'.
In a parenting forum, someone dismisses formula milk out of hand because breastfeeding is 'what nature intended', with no glance at the family's actual situation.
How to spot it
- Listen for 'natural' doing the whole job of 'good' with no property named in between.
- The argument never says what the natural thing actually does — only where it comes from.
- Ask whether the speaker would accept the same logic applied to arsenic or lightning, both rich in nature.