What's happening.
Your 15-year-old, at breakfast: “I'm going vegan. Starting today.” You note that this is the third diet in six months.
What we usually say — and why it backfires.
Vegan? You don't eat anything but pasta and chicken. This will last a week.
You don't take anything I say seriously.
I will when you stick with one thing for more than a month.
Whatever. I'm doing it.
- Mocking the announcement guarantees they'll dig in to prove you wrong — possibly going further than they intended.
- “You don't stick with one thing” is a personality attack disguised as observation. It's also probably not the real issue.
- You haven't learned anything about WHY they want this — which is the conversation worth having.
What works — and why.
Okay, tell me about it. What's pulling you toward vegan specifically?
I've been watching some videos about animal stuff. And I feel kind of gross after I eat meat lately.
Got it. Those are real reasons. Let me ask one practical thing — do you want to do this carefully, with enough protein and B12, or are you going to wing it and we figure it out as we go?
Carefully I guess. I don't actually want to feel like trash.
Okay. Let's spend 20 minutes this weekend looking at what a real vegan day looks like — beans, lentils, tofu, nuts, what to add. I'll buy the stuff. The condition I have is: if you start feeling weak or your period gets weird or hair starts shedding, we re-evaluate together. Workable?
Yeah. Deal.
- “What's pulling you toward this specifically” surfaces the actual driver — values, body image, friend influence, all valid, all needing different responses.
- Distinguishing “carefully” from “wing it” treats the teen as a partner in their own nutrition rather than someone whose plan you'll fix.
- The “re-evaluate together” conditions (energy, period, hair) make medical surveillance feel collaborative, which is exactly what gets reported back honestly later.
Key phrases to reach for in the moment.
- What's pulling you toward this specifically?
- Do you want to do this carefully, or wing it?
- Let's spend 20 minutes looking at what a real [diet] day looks like.
- If [warning signs] happen, we re-evaluate together.
