SunFiber 7 g by Tomorrow's Nutrition

Irritable bowel syndrome (IBS) often swings between constipation and loose stools; partially hydrolyzed guar gum (PHGG) is the rare fiber that helps both. It’s a fit if you bloat with psyllium or inulin, want regularity without gas, or follow a low-FODMAP plan and need a gentle prebiotic. It’s also useful when metabolic labs like fasting glucose, A1c, or Triglycerides are creeping up and you want a food-first lever that’s easy to stick with.

PHGG dissolves clear and is low viscosity, so it mixes easily and moves through the stomach without thickening. In the colon it ferments slowly, feeding beneficial bacteria and producing short-chain fatty acids like butyrate (fuel for the cells lining your colon). That steady fermentation normalizes stool water content, which firms loose stools and softens hard ones, and it’s why gas and cramping are uncommon. Trials also show modest improvements in post-meal glucose and fullness signals that can help with weight management.

Mix one scoop (7 g) into 6–8 oz of water, coffee, or a smoothie; it’s tasteless and works hot or cold. Start with half a scoop daily for 3–4 days, then move to a full scoop. Many IBS patients do best splitting the dose morning and evening. Studied intakes range from 5 to 15 g per day. Expect bowel pattern changes within 3–7 days, with metabolic effects on fasting glucose or Triglycerides showing over 4–12 weeks.

Separate this fiber from medications by at least two hours, especially levothyroxine, iron, and certain antibiotics, to avoid reduced absorption. Skip if you have known bowel obstruction, severe gut narrowing, or have been told to avoid fiber after surgery until cleared. People with severe bloating from small intestinal bacterial overgrowth should titrate very slowly. Guar allergies are rare but possible. Hydrate well to keep stools comfortable.