>>In the HLF vs HLC diets, respectively, the mean 12-month macronutrient distributions were 48% vs 30% for carbohydrates, 29% vs 45% for fat, and 21% vs 23% for protein.
30% carbs is hardly "low-carb".
Indeed, most low-carb diets suggest 50g or less carbs per day - 200 calories or less.
https://www.dietdoctor.com/how-low-carb-is-low-carb
edit: why am I being downvoted?