Dennis, You had the same question two years ago https://forum.lowcarber.org/showthread.php?t=485262
My answer is same…very low carb may not be the best choice for your health. A LC but not keto diet would allow you as much real food fiber as you need, mainly from vegetables. I do not use any fiber supplements, but still take magnesium. See the first pages of my journal for foods I eat. All the best