Yes, 60 grams of carbs per day is still low.
Dr. Lutz's Life Without Bread
, Barry Groves' recommendations, and Dr. Jan Kwasniewski's recommendations are at about that level. Dr. Lutz recommends for people who have serious health challenges, or who are older, to start around 100 grams per day, and slowly work one's way down, over weeks or months. There is a short description of Dr. Lutz's plan here:
If our goal is optimal health, then discovering what is optimal for ourselves, at each stage of life, is key.
I do best in the 28 - 35 grams per day range. If I eat more carbs, that triggers appetite, and gives the symptoms I get from too many carbs.
If I go below that level, I don't do well at all. It feels as though my body is working too hard, struggling.
Dr. Atkins wrote in his books about finding the Critical Carb level, for losing weight, and for maintaining.
I have found, for myself, that there is a Critical Protein level, and a Critical Fat level, too.
Best wishes to all.