Protein & Nutrition Blog – Marmels

Glycemic index panels and scale: coconut sugar 54, pure maple syrup 54 and cane sugar 65, against a low cutoff of 55

Protein & Nutrition Blog – Marmels

Coconut Sugar vs Maple Syrup: Which Sweetener Is Better?

by Mo Mandegar, PhD on Oct 04 2026
Two jars, one amber and one granular, both sold as the gentler sweetener. Coconut sugar sits near 35 on the glycemic index, maple syrup near 54 and cane sugar about 65, but only maple syrup supplies a measurable share of manganese and riboflavin. Here is how they compare, and how to choose.
Bar chart of calories per gram: cane sugar 4.0, coconut sugar 3.8, xylitol 2.4, maltitol 2.1, allulose 0.4 and erythritol 0.2

Protein & Nutrition Blog – Marmels

What Is Allulose? The Sugar That Doesn't Count as Sugar

by Mo Mandegar, PhD on Sep 22 2026
Some "zero sugar" labels refuse to add up: 15 grams of carbohydrate, 0 grams of sugar, and a sugar sitting in the ingredient list. Allulose is usually the reason. It is a rare sugar the body absorbs but barely uses, counted at 0.4 calories per gram instead of 4.0, and allowed off the sugar line entirely. Here is how it works, and the dose where it stops being comfortable.
Bar chart of the dose in grams at which digestive symptoms typically begin: sorbitol 10, isomalt, mannitol and maltitol 20, xylitol 30 and erythritol 50

Protein & Nutrition Blog – Marmels

Are Sugar Alcohols Bad for You? What the Research Shows

by Mo Mandegar, PhD on Jun 16 2026
Sugar alcohols built a category on the promise of zero-calorie sweetness with no metabolic cost. Most cause gastrointestinal (GI) issues at modest doses, and 2023 to 2024 research has linked erythritol and xylitol to elevated cardiovascular risk. Here is what the science actually says.