Have you ever picked up a packaged food, flipped it over, looked at the ingredient list, and thought: “What in the world is all of this?” Some ingredients have names that sound like they belong in a chemistry lab. Others show up everywhere—artificial sweeteners, food dyes, preservatives, modified starches, flavorings. However, not every unfamiliar ingredient is dangerous. Not every processed food is unhealthy. So, which ingredients deserve our attention? What does the science actually suggest? And most importantly, how can you use that information to make better choices without becoming afraid of your grocery cart?
First, let’s clear up one important misconception. “Processed food” is an incredibly broad term. For example, frozen vegetables are processed. Processing by itself doesn’t necessarily make food unhealthy. The bigger concern is ultra-processed foods—foods that tend to be heavily formulated, easy to overconsume, and frequently high in added sugar, chemical additives, refined starches, and empty calories. Easy to overeat. Minimal to no nutritional value. These include but are not limited to:
Artificial Sweeteners: Artificial Sweeteners are not the magic solution to obesity that people once hoped they might be. Research continues into how different sweeteners impact appetite, metabolism, glucose regulation, and the gut microbiome. Artificial sweeteners raise your risk of diabetes, cause or aggravate inflammatory bowel disease, alter the gut microbiome by destroying up to 50% of your beneficial gut flora. Both animal and human studies have shown artificial sweeteners alter blood sugar and insulin function thereby increasing weight gain, insulin resistance, and type 2 diabetes.
Artificial Flavors: Artificial flavors are molecules designed to reproduce a flavor that exists naturally, and there can be hundreds of different chemical compounds for just a single flavor. Some artificial flavors, such as “Butter Flavoring” have serious implications for brain health and may contribute to beta amyloid plaques in the brain.
Trans Fats-Partially Hydrogenated Oil: Ever since the introduction of trans fats/Partially Hydrogenated Oil in 1911, they have been implicated in numerous serious health problems. They promote systemic inflammation, interfere with cell membrane function, which can pave the way for diabetes, and cardiovascular disease. Research shows Trans fats can raise stroke risk by as much as 30%.
Artificial Colors: Chemical Food dyes are known to be related to immune and brain dysfunction as well as hyperactivity and other behavioral problems. Many of these colors are derived from coal tar. Every year, food manufacturers dump over 15 million pounds of artificial food dyes into US foods.
High-fructose Corn Syrup: HFCS foods can make it incredibly easy to consume hundreds of calories without feeling full. Consumption can result in weight gain, fatty liver disease, diabetes, insulin resistance, and dental decay.
Preservatives are another ingredient of concern. But “contains preservatives” by itself doesn’t tell you whether a food is healthy or unhealthy. Here’s a useful rule. If you’re choosing between foods, prioritize products built primarily around whole or minimally processed ingredients.
Genetically Modified Foods: The Non-GMO project says: “Most developed nations do not consider GMOs to be safe”. In more than 60 countries around the world, there are significant restrictions or outright bans on the production and sale of GMOs.
MSG: The National Institute of Health notes that MSG consumption leads to obesity, insulin resistance, disrupted body energy balance, and activation of inflammatory immune response just to name a few. NIH also postulates that MSG is “a threat to public health”. Finally,
Modified Starches and Maltodextrin. These ingredients are used to improve texture, stability, thickness, or shelf life. They cause rapid blood sugar spikes, large insulin surge, blood sugar crash, increased hunger response, insulin resistance, weight gain, visceral fat accumulation, chronic inflammation, high blood pressure, endothelial dysfunction, coronary artery disease, heart attack, and stroke. Remember, whole foods do not require modified starch. Modified starch is a clear marker of an ultraprocessed food.
So, what should you do? Here’s what I recommend. Don’t try to memorize hundreds of chemicals. Don’t panic because you can’t pronounce something. And don’t assume a package is healthy because it says “natural,” or “low-fat” on the front. Turn it over. Look at the ingredient list. Look at the nutrition label. And ask yourself one very simple question: Does this food resemble something that nourishes me, or was it primarily engineered to make me want another bite? Prioritize a diet built around recognizable foods: Foods that don’t require a marketing department to convince you they’re food. You don’t need to panic because you ate a cookie.
What matters most is the pattern you repeat day after day. The next time you’re standing in the grocery store staring at a long ingredient list, ask yourself “Is this the kind of food I want forming the foundation of my diet?” Because the goal isn’t to fear food or memorize every additive. It is to recognize the pattern. When most of what you eat looks reasonably close to the food it comes from and highly processed foods become the exception rather than the foundation—you’ve already made the biggest change that matters.
Blessings,
Dr. Mark
