Apples 
They're rich in fiber and antioxidants. Eating them is linked to a lower risk of many chronic conditions, including diabetes, heart disease, and cancer. Apples may also promote weight loss and improve gut and brain health.
 Avocado 
Avocados are high in fat with 60 per cent of this being monounsaturated fats, which research suggests helps to protect against heart disease and lower blood pressure. They are also an excellent source of potassium, folate and fibre, all of which benefit the heart and cardiovascular 
Bananas
 Rich in nutrients. ... May improve blood sugar levels. ... May support digestive health. ... May aid weight loss. ... May support heart health. ... Full of antioxidants. ... May help you feel fuller. ... May improve insulin sensitivity when unripe. 
Blackberries
 The antioxidants, vitamins, and minerals found in blackberries deliver a variety of health benefits. Antioxidants such as anthocyanins hold many anti-inflammatory and anti-microbial properties. They may also combat diabetes and certain kinds of cancer 
Blueberry
 Proven Health Benefits of Blueberry It reduces the risks of heart disease. ... It strengthens metabolism. ... Anti-ageing properties. ... It may help fight Cancer. ... Blueberries improve memory and brain function. ... Blueberries improve insulin sensitivity. ... Blueberries help fight depression. ... Blueberries help in strengthening bones.