Spinach, kale and other green leafy vegetables are low in carbs, high in fiber, and have a low glycemic index, which prevents blood sugar spikes Blueberries, strawberries and raspberries are full of fiber and antioxidants, which improve insulin sensitivity Next, almonds, walnuts, chia and flaxseeds offer healthy fats and protein that slow sugar absorption Whole grains such as oats, quinoa and barley are rich in fiber, helping to keep blood sugar stable Salmon, mackerel and sardines contain omega-3s, which reduce inflammation and improve insulin resistance Beans, lentils and chickpeas are abundant in fiber and protein, helping to maintain steady blood sugar Lastly, greek yogurt is rich in protein and probiotics, helping to control blood sugar spikes and improve gut health