Home › Healthy Aging Guides

12 Antioxidant Foods for Steady Blood Sugar

Color your plate, steady your day.

Quick answer

Good antioxidant foods for steady blood sugar are colorful, fiber-rich and low on the glycemic index. Top choices include berries, leafy greens such as spinach and kale, broccoli, bell peppers, tomatoes, almonds and walnuts, sunflower and pumpkin seeds, beans and lentils, oats, citrus and kiwi, green tea, cinnamon and extra virgin olive oil. They supply vitamin C, vitamin E, magnesium, zinc, polyphenols and fiber, which slow sugar absorption. Build meals with half a plate of vegetables, a quarter protein and a quarter fiber-rich carbs, add a handful of nuts or seeds, and choose whole fruit over juice.

Key takeaways

The foods that help keep blood sugar steady are often the same ones packed with antioxidants. Here are 12 to add to your week.

12 antioxidant foods

FoodKey nutrientsWhy it helps
BerriesVitamin C, polyphenols, fiberSweet but lower glycemic
Spinach and kaleMagnesium, vitamins C and EVery low in carbs
BroccoliVitamin C, chromium, fiberFilling and low in sugar
Bell peppersVitamin CMore vitamin C than an orange
TomatoesLycopene, vitamin CLow glycemic
AlmondsVitamin E, magnesiumProtein and healthy fat
WalnutsPolyphenols, omega-3Slows digestion
Sunflower and pumpkin seedsVitamin E, zinc, magnesiumEasy snack
Beans and lentilsFiber, magnesium, zincSlow-release carbs
OatsBeta-glucan fiberGentle glucose rise
Green teaCatechinsUnsweetened, zero sugar
Extra virgin olive oilPolyphenols, vitamin ESlows meal absorption

Sample day

Breakfast

Oats with berries and a spoon of pumpkin seeds.

Lunch

Spinach salad with lentils, peppers, tomatoes and olive oil.

Snack

A small handful of almonds and green tea.

Dinner

Fish or chicken with broccoli and a small portion of brown rice.

Smart plate tips

A supplement such as Gluco Armor, with vitamins C and E, zinc, chromium and magnesium, can complement, but not replace, a balanced diet.

Note: if you take diabetes medicines, big diet changes can affect your blood sugar. Talk to your doctor or a dietitian first.

Sources

  1. Harvard T.H. Chan School of Public Health – "Antioxidants" and "Carbohydrates and Blood Sugar."
  2. American Diabetes Association – "Diabetes Superstar Foods."
  3. NIH Office of Dietary Supplements – Vitamin C, Vitamin E and Magnesium fact sheets.

Common questions

Which foods are high in antioxidants and good for blood sugar?

Berries, leafy greens, nuts, seeds, beans, peppers and green tea.

Which foods give vitamin E?

Almonds, sunflower seeds, spinach and olive oil.

Can food replace a supplement?

Food comes first; a supplement can complement a balanced diet.

← Back to home

↑