Type 2 Diabetes Food List: What to Eat, What to Limit (Including African Staples Like Sadza and Ugali)

A man in his sixties came in for his monthly tablets and stayed to ask the question he had clearly rehearsed. "Pharmacist, my doctor says I must stop sadza. But sadza is what we eat. What do I eat instead?" His wife, standing beside him, added that she had thrown out the mealie meal and now nobody was happy. He wanted a type 2 diabetes food list that fit a real kitchen, and he had been handed a list that did not.

Here is the reassuring part. Most major guidance does not tell people to ban their staple food. It asks for a different plate, a sensible portion and fewer sugary extras. This article sets out what the main health bodies recommend, then looks closely at sadza, ugali, nshima and other African staples.

Start with the plate, not a list of banned foods

The plate method is recommended by both the US Centers for Disease Control and Prevention (CDC) and the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Use a 9-inch (23 cm) plate:

• Half: non-starchy vegetables, such as leafy greens, peppers, carrots, green beans or tomatoes.
• One quarter: protein foods, such as fish, chicken, eggs, beans, tofu or lean meat.
• One quarter: carbohydrate foods, ideally higher-fiber ones such as whole grains, beans or fruit.
• With the meal: water or an unsweetened drink.

The NIDDK adds that if you do not take insulin, you may not need to count carbohydrates with this method. If you do take insulin, ask your diabetes team how to match carbohydrates to your dose.

Why carbohydrates matter most

Carbohydrate foods break down into glucose, so they raise blood sugar more than other foods. The NIDDK lists beans, fruit and starchy vegetables such as potatoes and corn among the foods higher in carbohydrate, and the CDC includes grains, rice, pasta, yogurt and milk. They are not off limits. The CDC suggests keeping carbohydrate fairly even from meal to meal, and notes that eating carbohydrate with protein, fat or fiber slows how quickly blood sugar rises.

There is no single ideal split between carbohydrate, protein and fat. The 2026 American Diabetes Association (ADA) Standards single out Mediterranean-style and low-carbohydrate eating as having the best evidence for delaying type 2 diabetes in people at high risk. If you are on insulin or tablets that can cause low blood sugar, such as sulfonylureas, cutting carbohydrate sharply without adjusting your medicines can be dangerous, so involve your doctor first. The NHS also warns against switching to a very strict low-calorie diet without professional advice.

Type 2 diabetes food list: what to eat more often

| Food group | Good choices | Notes | |---|---|---| | Non-starchy vegetables | Leafy greens (covo, spinach, rape, pumpkin leaves), cabbage, okra, tomatoes, peppers, carrots, green beans | Fill half your plate | | Protein | Fish, eggs, chicken, lean meat, beans, lentils, groundnuts, tofu | Beans and lentils also supply fiber | | Whole grains | Oats, brown rice, whole-grain bread, whole-grain maize meal, sorghum, millet | Still carbohydrate, so portion matters | | Fruit | Whole fruit such as oranges, apples, guavas, berries | Fruit juice raises blood sugar faster | | Drinks | Water, unsweetened tea or coffee, sparkling water | The NIDDK also lists low-fat milk | | Fats | Nuts, seeds, olive or other plant oils, oily fish | Use in modest amounts |

The NHS also lists wholegrain foods, pulses, fruit and vegetables as the foundation of its advice for type 2 diabetes, and suggests making one small change each week rather than overhauling everything at once.

What to limit

• Sugary drinks. The NIDDK names soda, juice and sports drinks. In many homes the bigger culprits are tea with several spoons of sugar, orange squash and sweet energy drinks.
• Added sugars and refined grains. The CDC advises limiting added sugars and refined grains such as white bread, white rice and pasta.
• Processed foods high in salt and sugar. The NHS lists bacon, chips, cheese, sweets and biscuits as examples to cut back.
• Foods high in saturated fat and sodium. The NIDDK suggests limiting these.
• Alcohol. The NIDDK says to limit it. For people on insulin or certain diabetes medicines, alcohol can cause low blood sugar, so eat when you drink and check your glucose afterward.

Supplements deserve a mention. The NIDDK states that no clear proof shows specific foods, herbs, spices or supplements manage diabetes, and some can cause side effects or interact with medicines. Tell your pharmacist before adding any.

Sadza, ugali, nshima and other staples

Sadza (Zimbabwe), ugali (Kenya, Tanzania), nshima (Zambia), nsima (Malawi) and pap (South Africa) are all stiff maize porridges. They are mostly starch, so they belong in the carbohydrate quarter of the plate, alongside rice, potatoes, cassava, sweet potato and plantain.

What does the research say about their effect on blood sugar? One small study in Malawi tested three versions of maize stiff porridge in 11 healthy volunteers, using portions that each supplied 50 g of carbohydrate. The porridges made from whole maize flour and from refined (dehulled, degermed) flour produced a high glycemic response, while a porridge made from fermented maize grits produced a lower, moderate one. The authors suggested that fermentation may help, and they also listed limits: very few participants, no people with diabetes, a single food eaten alone rather than a real meal, and uncontrolled earlier meals. The paper's own tables also report some numbers inconsistently, so I will not quote them. Treat the study as a reasonable hint, not proof.

What this means in practice:

1. Portion is the biggest lever. A heap of sadza that covers half the plate is a different thing from a fist-sized portion on a quarter of it. Start by serving the vegetables first.
2. Do not rely on "wholemeal" alone. In that study, whole maize porridge still gave a high response. Whole grains are good for you for other reasons, such as fiber, but they are not a free pass.
3. Pair it. Eat sadza with a large helping of covo or other greens, plus beans, fish, chicken or eggs. The CDC notes that eating carbohydrate with protein, fat or fiber slows the rise in blood sugar.
4. Test and learn. If you have a glucose meter, check your reading 1 to 2 hours after the start of a meal on a few different days. The ADA lists a peak after-meal target of under 180 mg/dL (10.0 mmol/L) for many non-pregnant adults, but goals are individualized, so ask your team what to aim for.
5. Keep sweet extras out. Many people do not think twice about adding sugar to maize porridge for breakfast, or following a meal with a soft drink.

Other staples work the same way. Rice, cassava, sweet potato, plantain and potato are all carbohydrate. Eat modest portions, choose boiled or baked over fried, and balance them with vegetables and protein.

Movement and weight

Food is only one part of the picture. The NIDDK recommends at least 150 minutes of moderate activity a week, strength training twice weekly, and says losing 5% to 7% of your body weight may help manage blood sugar, cholesterol and blood pressure. The NHS suggests at least 2.5 hours a week of activity that leaves you slightly out of breath. A walk after meals is a simple place to begin.

Questions to ask your doctor or pharmacist

• Which foods should I watch most, given my medicines?
• Can you refer me to a dietitian or diabetes education program who understands African and Caribbean foods?
• What are my targets for fasting and after-meal glucose, and for A1C?
• Is there a risk of low blood sugar with my tablets or insulin if I change how I eat?
• Should I check my glucose after meals, and how?
• Do my medicines affect my appetite, weight or kidneys?
• How should I handle fasting, such as for religious reasons, safely with my medicines?

If you'd like the full guide, my book The Type 2 Diabetes Food List and Meal Plan goes deeper into what to eat, with simple weekly meal plans and a plain-English look at your diabetes medicines.

Sources

• Centers for Disease Control and Prevention. Diabetes meal planning
• National Institute of Diabetes and Digestive and Kidney Diseases. Diet, eating and physical activity (diabetes)
• NHS. Type 2 diabetes: food and keeping active
• Mlotha V, Mwangwela AM, Kasapila W, Siyame EWP, Masamba K. Glycemic responses to maize flour stiff porridges prepared using local recipes in Malawi. Food Science & Nutrition. 4(2):322-328. doi:10.1002/fsn3.293
• American Diabetes Association. Glycemic targets, Table 6.3, Standards of Care in Diabetes
• Diabetes on the Net. Factsheet: 2026 ADA Standards of Care
• Centers for Disease Control and Prevention. Treatment of low blood sugar (hypoglycemia)
• NHS. High blood sugar (hyperglycaemia)