InstalabHigh Quality Fiber Supplements
Fiber supplements support digestive regularity, blood sugar, and cholesterol.
Fiber MGP
PectaSol Modified Citrus Pectin Unflavored Powder
PectaSol Modified Citrus Pectin Unflavored Powder
Fiber FAQs
What's the difference between soluble and insoluble fiber?
Soluble fiber (psyllium, oat beta-glucan, acacia) dissolves in water and feeds gut bacteria, lowers LDL, and stabilizes blood sugar. Insoluble fiber (cellulose, wheat bran) adds bulk and speeds transit. Most people benefit from a mix of both.
How much fiber do I need?
25–38 g/day from food and supplements combined. The average American gets about 15 g. Adding 5–10 g of supplemental fiber bridges most of that gap if you can't easily increase it through whole foods.
Will fiber cause gas or bloating?
Often, when starting. Begin with a small dose, increase gradually over 1–2 weeks, and drink plenty of water. Once your gut microbiome adjusts, gas typically settles down.
Psyllium vs. acacia vs. inulin — which is best?
Psyllium is best-studied for cholesterol and constipation but can be gas-producing. Acacia (gum arabic) is the gentlest, best for sensitive guts. Inulin is highly fermentable — great for microbiome but rough for IBS or SIBO. Glucomannan and oat beta-glucan are good middle-ground options.
When should I take fiber?
For cholesterol or blood sugar: 15–30 minutes before meals. For regularity: any consistent time, usually morning. For weight management: before meals to support fullness. Always with at least 8 oz of water and at least 1 hour away from medications.
Does fiber affect medication absorption?
Yes. Fiber can slow or reduce absorption of thyroid medication, statins, antidepressants, and some diabetes medications. Take medications at least 1 hour before or 2–4 hours after fiber to avoid this issue.
Can I get all my fiber from supplements?
Better not to. Whole-food fiber comes packaged with phytonutrients, prebiotic diversity, and a wider range of fermentable substrates that supplements can't replicate. Use fiber supplements to fill gaps, not as a primary source.
Will fiber help with weight loss?
Modestly. Soluble fibers like glucomannan and psyllium increase satiety and slow gastric emptying. In trials, 5–10 g of soluble fiber before meals produces about 2–4 lb of additional weight loss over 12 weeks. It's a tool, not a cure.
Is fiber safe during pregnancy?
Yes — pregnancy increases constipation risk and fiber is one of the first-line solutions. Psyllium and partially hydrolyzed guar gum are both well-studied and safe. Aim for 28 g/day total fiber during pregnancy.