Onion
Excellent — Onion strongly supports fat-burning.
A low-glycemic aromatic vegetable with almost no effect on insulin.
The breakdown
Per serving: 1 medium (110g)
Glycemic index 15 · Carbs 11g · Fat 0g · Processing whole
What this means for fat-burning
A FatTonic Score of 98 places onion in the Excellent band. The score is dominated by its glycemic load of 1 (low — a gentle, sustained glucose curve).
See how your whole day scores — free Metabolic Score →Frequently asked questions
Does onion spike insulin?
Onion has a glycemic load of 1 and a FatTonic Score of 98 out of 100, which means it strongly supports fat-burning. A low-glycemic aromatic vegetable with almost no effect on insulin.
Is onion good for fat loss?
With a FatTonic Score of 98/100 (Excellent), onion strongly supports fat-burning. A low-glycemic aromatic vegetable with almost no effect on insulin.
More vegetables
You have this food's score. What about your day?
The free Metabolic Score is a 2-minute questionnaire about your everyday habits. It names the pattern that comes up most in your answers and one thing to change.
Get your free Metabolic Score →