The foods you eat have a significant impact on your health, particularly in terms of how your body handles sugar and maintains weight. Eating certain types of foods regularly can lead to insulin resistance, where your body struggles to manage blood sugar levels properly, often resulting in weight gain. Understanding which foods contribute to these issues can help you make smarter dietary choices, maintain a healthy weight, and support your overall well-being.
We checked in with Lisa Richards, nutritionist at The Candida Diet; Destini Moody, registered dietitian and certified specialist in sports dietetics; Shana Abraham, NASM certified personal trainer and Precision Nutrition certified nutrition coach; and dietitian Catherine Gervacio; to learn about seven foods that could lead to insulin resistance and weight gain. They revealed that cereal, donuts, bacon, French fries, and more are the ones to minimize. Read on to discover all seven.
1. Cereal
Breakfast cereal, with its myriad of flavors, textures, and choices, has long been a staple of the morning routine for many. These convenient and often tasty options seem like a quick and healthy way to kickstart the day. However, it's essential to consider the link between breakfast cereal and weight gain, along with other health problems such as a sluggish metabolism and insulin resistance.
While some boast of their health benefits and whole-grain goodness, others hide excessive sugar and refined carbohydrates behind clever marketing.
"Cereals are often very high in sugar and low in fiber, which means they pass through your digestive system quickly. Fiber keeps you feeling fuller for longer, which helps control your food intake and prevent weight gain. It also causes slower digestion which means a slower release of energy into your bloodstream throughout the day. Even brands like Special K and Life, which are heavily marketed as weight loss friendly cereals, have the same low amount of fiber found in the common sugary brands like Frosted Flakes," Moody says.
For a healthier swap, cooked oats, Greek yogurt, chia seed puddings are a great way to start the day. They are rich in fiber, protein, and can be topped with fruits, nuts, seeds, and a drizzle of honey or maple syrup for natural sweetness.
2. Donuts
Donuts, with their fluffy texture and sugary glaze, are a beloved indulgence for many. Often fried in unhealthy oils, donuts are a double whammy of refined carbohydrates and trans fats. These ingredients, combined with the frying process, create a perfect storm for health issues.
Refined carbohydrates, found in the dough, rapidly spike blood sugar levels, leading to insulin resistance over time as the body struggles to manage glucose effectively.
Richards states that "donuts have a high content of refined sugars, unhealthy fats, and processed ingredients. They are typically made with refined wheat flour and packed with added sugars, causing a rapid rise in blood glucose levels when consumed. This sudden spike in blood sugar triggers a corresponding surge in insulin to regulate sugar levels, which can be harmful to the body in the long term and lead to insulin resistance."
Opt for muffins made with whole grain flour, natural sweeteners like honey or maple syrup, and add-ins like fruits, nuts, or seeds. These are more nutritious and provide more fiber.
3. White Bread and Bagels
White bread and bagels, while staples in many diets, are often made from refined flour, lacking the fiber and nutrients found in whole grains. The high glycemic index of these refined carbohydrates can lead to spikes in blood sugar levels, followed by crashes that may trigger increased hunger and cravings.
"Refined carbohydrates like white bread and bagels lack fiber and can lead to rapid spikes and crashes in blood sugar. Opting for whole-grain or alternative flour options can provide sustained energy and aid in weight loss," Abraham reveals.
4. Fast-food French fries
French fries are typically high in unhealthy fats, refined carbohydrates, and sodium, all of which can disrupt metabolic processes. The excessive intake of refined carbs and unhealthy fats can lead to spikes in blood sugar levels, causing the body to produce more insulin.
"French fries contain trans fat that contributes to inflammation and insulin resistance by interfering with the normal function of insulin," Gervacio says. "Also, trans fat is linked to an increase in visceral fat, which is stored around internal organs."
Instead, she says to "prepare French fries at home instead and bake them." However, "It’s also best to have boiled potatoes instead or opt for sweet potatoes for a lower glycemic index food."
5. Bacon
High in unhealthy saturated fats and sodium, bacon can lead to metabolic disturbances when consumed in excess. The high fat content can promote weight gain, particularly around the abdomen, while the sodium can cause water retention and increase blood pressure.
"Bacon is a type of meat that is processed and may contain artificial ingredients that disrupt the metabolic process and contribute to insulin resistance," Gervacio says. "This disruption can lead to imbalances in hunger and satiety signals, potentially promoting overeating and weight gain."
Instead, she says, "Focus on whole, minimally processed proteins, vegetables, and fruits to support overall health and insulin sensitivity."
6. Candies
Sweet candies are loaded with refined sugars that cause rapid spikes in blood sugar levels. These sugar spikes prompt the body to release large amounts of insulin to manage blood sugar levels.
Gervacio warns, "Consuming excessive refined sugar can spike blood glucose levels, leading to insulin resistance over time."
Luckily, sweet treats such as dark chocolate and fruits provide a healthier alternative. "Better yet, focus on whole fruits for sweetness," Gervacio suggests.
7. White Bread
White bread is a staple in many diets, but when you consume white bread, your body rapidly breaks down the carbohydrates into glucose, causing a spike in blood sugar levels. This spike triggers a surge in insulin production to help regulate blood sugar.
"Refined carbohydrates like white bread can cause rapid strikes in blood sugar, promoting insulin resistance and weight gain," Gervacio notes.
She states that complex carbs are a healthier choice that could aid in stabilized blood sugar levels. "Choose whole grains like quinoa, brown rice, and whole wheat bread for sustained energy and better blood sugar control," she concludes.
