Bread and insulin resistance: Understanding your options for healthy eating
TOI GLOBAL DESK | TOI GLOBAL | Jan 23, 2026, 20:34 IST
Bread
In the heart of American kitchens, bread often holds a beloved status. However, the battle against weight gain and diabetes is real for many. Theresa Link, a registered dietitian, sheds light on insulin resistance and how it relates to carbohydrate consumption. For individuals without insulin sensitivity, options like sprouted grain and genuine sourdough breads can be delightful choices.
Bread remains a popular food in America, with 97% of households purchasing it weekly, despite a recent price increase. Health-conscious consumers are increasingly choosing grainy breads rich in fiber and protein, and low in carbohydrates. However, a significant portion of the US population, around 75%, struggles with being overweight, obese, or having Type 2 diabetes, conditions often exacerbated by insulin resistance. High-carbohydrate foods like bread can worsen this condition over time, according to registered dietitian Theresa Link. For the approximately 25% of Americans who are not insulin-resistant, certain breads can be part of a healthy diet, while others offer bread like alternatives for everyone.
Insulin is a crucial hormone produced by the pancreas that facilitates the entry of blood sugar (glucose) into cells for energy. “Insulin resistance occurs when cells stop responding properly to insulin, making it harder for carbohydrates (glucose) to be used for energy,” Link explained. When cells become resistant to insulin, it becomes more difficult for glucose to enter them for energy.
“Over time, insulin levels rise, worsening metabolic health,” she added. “Simply put, insulin resistance is the inability to tolerate carbohydrates well.” Individuals with insulin resistance may not exhibit obvious symptoms, though some might notice skin tags or dark, velvety patches in areas like their armpits, groin, or neck. Other classic indicators include weight gain, high blood pressure, irregular menstruation, and fatigue. Blood tests are available to confirm the presence of insulin resistance.
For the roughly 25% of individuals who do not have insulin resistance, bread can be incorporated into their diet. “The best options are sprouted grain bread, which has a lower carb impact, and authentic sourdough, where natural fermentation helps reduce blood sugar response.”
Sprouted grain bread is made from whole grains such as wheat, barley, and spelt that have been soaked until they sprout before being processed into flour. This sprouting process offers several advantages. It enhances the levels of nutrients like iron, zinc, magnesium, and folate. It also helps break down starches, improving digestibility, and lowers the glycemic index, which contributes to better blood sugar control. The resulting bread is sweeter, denser, more nutrient-rich, and more beneficial for gut health compared to white bread. Popular brands include Food for Life’s Ezekiel 4:9 and Dave’s Killer Bread.
Authentic sourdough is a naturally leavened bread made with just flour, water, salt, and an active sourdough starter, which contains wild yeast and lactic acid bacteria. The natural fermentation process is a key element. This process unlocks minerals and generates prebiotics that nourish beneficial gut bacteria.
The final product offers antioxidants, supports cardiovascular health, and has a lower glycemic impact than conventional breads. It is also characterized by a tangier flavor, a chewier texture, and a crustier exterior. To ensure you are purchasing authentic sourdough and not a substitute, look for labels that mention "natural leavening" and avoid those with added acids or commercial yeast.
Making sourdough at home is also an option, or one could befriend someone who makes it. While Link recommends sourdough and sprouted bread, she advises caution regarding whole grain breads. “These are often marketed as healthy,” she warned, “but they’re still highly processed and typically cause blood sugar and insulin spikes similar to white bread.”
For individuals with insulin resistance, reducing or eliminating traditional bread is considered essential for improving metabolic health. Fortunately, Virta Health, an organization focused on assisting people with weight loss and Type 2 diabetes reversal, provides numerous alternatives to traditional bread.
One such option is a recipe for skillet bread that utilizes almond flour and flaxseed meal in place of conventional flour. Another offering is low-carb dinner rolls, which substitute traditional flour with coconut flour and psyllium husk powder.
Insulin is a crucial hormone produced by the pancreas that facilitates the entry of blood sugar (glucose) into cells for energy. “Insulin resistance occurs when cells stop responding properly to insulin, making it harder for carbohydrates (glucose) to be used for energy,” Link explained. When cells become resistant to insulin, it becomes more difficult for glucose to enter them for energy.
“Over time, insulin levels rise, worsening metabolic health,” she added. “Simply put, insulin resistance is the inability to tolerate carbohydrates well.” Individuals with insulin resistance may not exhibit obvious symptoms, though some might notice skin tags or dark, velvety patches in areas like their armpits, groin, or neck. Other classic indicators include weight gain, high blood pressure, irregular menstruation, and fatigue. Blood tests are available to confirm the presence of insulin resistance.
For the roughly 25% of individuals who do not have insulin resistance, bread can be incorporated into their diet. “The best options are sprouted grain bread, which has a lower carb impact, and authentic sourdough, where natural fermentation helps reduce blood sugar response.”
Sprouted grain bread is made from whole grains such as wheat, barley, and spelt that have been soaked until they sprout before being processed into flour. This sprouting process offers several advantages. It enhances the levels of nutrients like iron, zinc, magnesium, and folate. It also helps break down starches, improving digestibility, and lowers the glycemic index, which contributes to better blood sugar control. The resulting bread is sweeter, denser, more nutrient-rich, and more beneficial for gut health compared to white bread. Popular brands include Food for Life’s Ezekiel 4:9 and Dave’s Killer Bread.
Authentic sourdough is a naturally leavened bread made with just flour, water, salt, and an active sourdough starter, which contains wild yeast and lactic acid bacteria. The natural fermentation process is a key element. This process unlocks minerals and generates prebiotics that nourish beneficial gut bacteria.
The final product offers antioxidants, supports cardiovascular health, and has a lower glycemic impact than conventional breads. It is also characterized by a tangier flavor, a chewier texture, and a crustier exterior. To ensure you are purchasing authentic sourdough and not a substitute, look for labels that mention "natural leavening" and avoid those with added acids or commercial yeast.
Making sourdough at home is also an option, or one could befriend someone who makes it. While Link recommends sourdough and sprouted bread, she advises caution regarding whole grain breads. “These are often marketed as healthy,” she warned, “but they’re still highly processed and typically cause blood sugar and insulin spikes similar to white bread.”
For individuals with insulin resistance, reducing or eliminating traditional bread is considered essential for improving metabolic health. Fortunately, Virta Health, an organization focused on assisting people with weight loss and Type 2 diabetes reversal, provides numerous alternatives to traditional bread.
One such option is a recipe for skillet bread that utilizes almond flour and flaxseed meal in place of conventional flour. Another offering is low-carb dinner rolls, which substitute traditional flour with coconut flour and psyllium husk powder.