Squid Game dropped its final season last weekend. Feels like just yesterday the first one hit – remember the doll game? Red light, green light.
It reminded me to share with you all this interesting diet system we follow at Qubit: The Traffic Light Food Classification.
Green‑light foods – Anytime, anywhere.
These are your steady, drama‑free staples. You eat them slowly, feel good after, and rarely overdo them. They are often whole foods – think lentils, yogurt, crunchy carrots – but could also be that square of dark chocolate you savor without spiraling. The common trait? They sit well with your taste buds, culture, schedule, and digestion.
Yellow-light foods – Proceed with a little mindfulness.
Maybe cheese pizza that is perfect only on game night, or coffee that is fine until cup three. Yellow foods ask you to check the dashboard: portion, frequency, tummy feedback. They are neither heroes nor villains; they are contextual.
Red‑light foods – Handle with strategy, not shame.
These trip your “can’t‑stop‑won’t‑stop” switch, clash with your goals, or just make you feel blah. Ultra‑processed foods often land here, but so can healthy‑ish foods (for example, milk for lactose intolerant people).
Red light foods may not work for you because:
They don’t help you achieve your goals
You always overeat them
You are allergic to them
You can’t easily digest them
You just don’t like them
Red doesn’t mean never; it means you keep them out of daily traffic, maybe enjoying them only when conditions are right – birthday cake at an actual birthday, not every Sunday afternoon.
This is the chart most people see. It is useful. But also… limited. So, you need to take it with a pinch of your own salt.
Because what is red for you may be yellow for me.
What is green on a good day might turn yellow under stress.
How to build your own traffic light in three moves
- Inventory reality check: For a week, jot what you eat and how it feels – energy, cravings, digestion, mood.
Sort, don’t judge: Color‑code based on your data: ease of eating, satisfaction, and goal alignment.
Tweak the map: Keep green foods plentiful and visible, stash yellows in smaller packages, gate‑keep reds by buying single‑serve portions or enjoying them out of the house.
The genius of Red Light, Green Light is not in speed. It is in the timing. Same with food. Knowing when to move. When to pause. And most importantly – when to listen. That is the real long-lasting victory.
