Lemon
Vitamin C, flavor without salt, helps iron absorption.
- Category
- Fruits
- Plate rating
- 88/100
- Glycemic index
- ≈20 · Low GI
- Pesticide residue
- Moderate
What lemon offers
- Vitamin C
- Flavor without salt
- Helps iron absorption
When to eat it
With meals or in water.
Tip
Great for iron absorption
Blood sugar
Low GI — tends to raise blood sugar slowly. GI values are approximate and vary with ripeness, variety and preparation. If you manage diabetes, ask your care team how this food fits your plan.
Pesticide residue & peeling
Relative residue level: Moderate — a rough guide, not a lab measurement. If using zest, buy organic. Juice is protected by peel. Rinse produce under running water before eating.
More fruits
BlueberriesAnthocyanin antioxidants, vitamin C & K, fiber
AvocadoMonounsaturated fats, fiber, potassium; helps absorb fat-soluble vitamins
PomegranatePolyphenol antioxidants, vitamin C, fiber (seeds)
AppleRich in fiber, Vitamin C, antioxidants
KiwiVitamin C (more per serving than an orange), fiber, vitamin K
GuavaVery high in vitamin C, fiber, potassium
Sources
- Nutrient data: USDA FoodData Central (search “Lemon”)
- Glycemic index: Glycemic Index Research and GI News (University of Sydney)
Last reviewed October 2026. How we rate foods.
General information only, not medical advice. If you take medicine or manage a health condition, check with your doctor, pharmacist or a registered dietitian before changing your diet. Read our medical disclaimer.