Silver tequila is the healthier choice. It’s less processed, more likely to be made from 100% agave, and contains fewer additives than most gold tequilas. That said, the differences are modest, and both are still alcohol, which carries its own well-documented health risks regardless of color.
What Makes Gold and Silver Tequila Different
Silver tequila (also called blanco) is bottled shortly after distillation, rarely aged more than a couple of weeks. It’s the purest form of tequila, with minimal intervention between the still and your glass. Gold tequila gets its color one of two ways: either by blending silver tequila with a small amount of aged tequila, or, more commonly, by adding caramel coloring and other ingredients to an unaged spirit.
This is where the health distinction starts. Many gold tequilas are “mixto,” meaning they contain only 51% agave-derived tequila, with the rest coming from added sugars or molasses introduced before fermentation. If the label doesn’t say “100% agave,” it’s a mixto. Silver tequila is far more likely to be 100% agave, though you should still check the label to be sure.
Additives in Gold Tequila
Mexican regulations allow tequila producers to add up to 1% of the total volume in four specific additives: caramel color, oak extract, glycerin, and sugar-based syrup. Gold tequilas lean heavily on these. Caramel coloring (the same Class IV type used in many processed foods) darkens the spirit to mimic the look of barrel aging. Glycerin, allowed up to one gram per liter, adds a smoother, weightier mouthfeel. Oak extract replicates the flavor of wood aging without actual time in a barrel. Sugar-based syrups round out the taste.
None of these additives are dangerous in the small amounts permitted, but they do represent extra processing. If your goal is to drink something as close to a single-ingredient product as possible, silver tequila gets you there. Gold tequila, particularly the mixto variety, is a more manufactured product.
Calories, Sugar, and Blood Sugar
A standard 1.5-ounce shot of straight tequila contains about 97 calories, zero grams of carbohydrates, zero grams of sugar, and zero fat. All of those calories come from the 14 grams of alcohol itself, which provides 7 calories per gram. This applies to both silver and gold tequila when consumed neat or on ice.
The practical difference shows up in mixto gold tequilas. Because they’re made with added sugars before fermentation, trace amounts of residual sugar can remain in the finished product. The difference per shot is small, but it adds up over multiple drinks. The glycemic index of pure tequila is effectively zero since there are no carbohydrates to spike blood sugar. However, alcohol itself affects blood sugar regulation by temporarily increasing insulin secretion (which can cause blood sugar to dip too low) and reducing your body’s insulin response over time.
Congeners and Hangovers
Congeners are chemical byproducts of fermentation, including compounds like methanol and fusel oils. They contribute to flavor but also to hangover severity. The general rule with spirits is that darker drinks contain more congeners because longer aging produces more of them.
Tequila is an unusual case. Even clear silver tequila contains relatively high congener levels compared to other white spirits like vodka. So while gold or aged tequila may have somewhat more congeners from barrel contact or added oak extract, the gap between silver and gold tequila is smaller than you might expect. Neither is a particularly “clean” spirit when it comes to congeners. If minimizing hangover potential is your priority, silver tequila still has a slight edge, but drinking less and staying hydrated will matter far more than the color of the bottle.
Histamines and Sensitivity
For people who are sensitive to histamines or tannins, the difference between silver and gold tequila becomes more meaningful. Unaged blanco tequila is typically rested in stainless steel tanks, so it has no exposure to wood and none of the tannins, phenolic compounds, or microbial byproducts that come with barrel aging. Gold tequilas that derive their color from oak extract or blending with aged tequila introduce those compounds. Aged tequilas like reposado (2 to 12 months in oak) carry moderate levels of tannins and potential histamine accumulation, while añejo styles aged a year or more carry the highest levels.
If you notice flushing, headaches, or nasal congestion after drinking certain spirits, choosing a 100% agave blanco is a meaningful way to reduce your exposure to those additional compounds.
The Agavin Myth
You may have seen claims that tequila contains agavins, a type of non-digestible sugar from the agave plant that has shown potential benefits for gut health and blood sugar regulation in early research. The problem is that agavins don’t survive the tequila-making process. During fermentation, these sugars are converted into ethanol. By the time the liquid reaches your glass, the potentially beneficial compounds are gone. This applies equally to silver and gold tequila, and to every other style. Tequila is not a health food, regardless of what the agave plant offers in its raw form.
How to Pick the Better Option
If you’re choosing between silver and gold tequila with health in mind, look for a silver (blanco) tequila labeled “100% agave.” This gets you a product with no added sugars, no caramel coloring, no glycerin, and no oak extract. It’s the least processed version of tequila available, with the lowest likelihood of containing additives that your body has to deal with on top of the alcohol itself.
Gold tequila labeled 100% agave (made by blending blanco with aged tequila) is a reasonable middle ground. The version to avoid, if health is your concern, is gold mixto tequila, the kind that relies on caramel coloring and added sugars to achieve its appearance. It’s the most processed option with the least agave content the law allows.