Athletes and health-conscious individuals tend to be especially mindful of their caloric intake, tracking macros and experimenting with different nutrition strategies to improve performance, body composition, and recovery. For many, alternative sweeteners are a useful tool. These provide sweetness with little to no calories, helping to reduce overall energy intake without giving up flavor.
The Sweet Truth Behind Sugar
When you hear the word “sugar,” you might immediately picture the white granulated kind used in coffee or baked goods. But sugar is more than just table sugar (sucrose), it’s a broad category of carbohydrates naturally found in fruits, vegetables, dairy, and grains. There are hundreds of different sources of sugars, each with unique properties. While sugar is often blamed for weight gain, the real challenge comes from consuming excess calories overall, not from sugar alone.
Understanding Sugars and Carbohydrates
Sugar can be found in dairy products, fruits, vegetables, and plant sources like cane, maple, corn, beets, honey and more. Each sugar is unique in regards to its chemical structure, its role in food and even the level of sweetness. Sugars are carbohydrates that provide about 4 calories per gram. They can be classified as:
- Simple Carbohydrates:
- Monosaccharides - single sugar units.
- Glucose (blood sugar, the body’s main energy source; also found in most plants as a component of starch)
- Fructose (naturally found in fruit)
- Galactose (naturally found in dairy as a component of lactose)
- Disaccharides - two sugar units
- Sucrose (glucose + fructose, known as table sugar)
- Lactose (glucose + galactose, found in dairy)
- Maltose (glucose + glucose)
- Complex Carbohydrates:
- Oligosaccharides - three to ten sugar units
- Polysaccharides - many sugar units combined.
- Monosaccharides - single sugar units.
Together, carbohydrates remain a key source of fuel and nutrition. Overall, the nutritional value of sugars does not vary greatly. All nutritive sweeteners provide 4 calories per gram, while some alternative sweeteners provide little to none.
Current Guidelines on Sugar Intake
While sugars provide quick energy, moderation is essential. According to the Dietary Guidelines for Americans 2020–2025, added sugars should make up less than 10% of total daily calories per day.
Added sugars are those that are not naturally found in the food being consumed. Most often, they are added to sweeten a food. For example, the lactose in yogurt is naturally occurring and would not be considered added sugar. If honey or jam was added to sweeten the yogurt, the sugar coming from that honey or jam would be considered added sugar.
For someone consuming 2,000 calories per day, that equals no more than 200 calories, or about 50 grams (12 teaspoons) of added sugar. The World Health Organization makes a similar recommendation. The focus is not on cutting all sugars, but on balancing intake and choosing nutrient-rich foods.
What Are Non-Nutritive Sweeteners?
Sweeteners are added to foods and beverages to help enhance flavor and provide sweetness, often without the added calories of sugar. They are widely used in protein powders, energy bars, diet sodas, sugar-free snacks, and many sports nutrition products.
Non-nutritive sweeteners provide sweetness with little to no calories. Some are synthetically produced, offering high-intensity sweetness. Examples: aspartame, saccharin, sucralose, and acesulfame potassium (Ace-K). Others, like stevia, can be extracted from plants.
Sugar Alcohols (Polyols) are naturally occurring in some fruits and vegetables and also manufactured. They provide on average about two calories per gram, however the amount differs by source. This is because digestion, absorption and metabolism may vary. Examples include: sorbitol, mannitol, xylitol, maltitol, lactitol, and erythritol.
Ultimately, choosing the right sweetener or products depends on your goals, preferences, taste, and dietary needs. Those looking to limit calorie or sugar intake may prefer non-nutritive sweeteners, while others may prefer whole-food sources and don't mind the extra calories – such as honey, maple syrup, stevia, monk fruit, or agave nectar.
Taste Perceptions
Sweetness is subjective. One person may find a food intensely sweet while another perceives it as mild. This is because sweetness perception depends on how molecules bind to receptors on our taste buds and how our brains interpret the signals. Individual taste sensitivity can vary and even evolve over time, influencing how sweeteners are experienced.
Key Takeaway
Sweeteners play an important role in sports nutrition and everyday wellness. They allow athletes and consumers to enjoy sweetness while reducing overall calorie and sugar intake.
For athletes, consistency in nutrition strategy is key. Sweeteners can help reduce calories when replacing sugar, but they’re not a magic solution. Lasting weight management depends on overall eating and lifestyle habits.
