NOW Foods

Beta-1,3/1,6 -D-Glucan 100mg

NOW Foods Beta-1,3/1,6-D-Glucan delivers 100mg of purified beta-glucan derived from Saccharomyces cerevisiae (baker's yeast) in a targeted 1,3/1,6-linked polysaccharide form, the specific branching structure associated with immune cell receptor activation.

May be a fit for

  • Adults seeking beta-glucan support for daily immune readiness
  • Those looking to supplement beta-1,3/1,6-D-glucan alongside a wellness routine
  • Individuals supporting natural killer cell and macrophage activity with beta-glucan
$19.99

30-day money-back guarantee
Save together with Wellness Circles

Invite friends or family to a Wellness Circle. Your group can unlock savings together. See current tiers and terms before joining.

Explore Wellness Circles
The essentials

A closer look.

NOW Foods Beta-1,3/1,6-D-Glucan delivers 100mg of purified beta-glucan derived from Saccharomyces cerevisiae (baker's yeast) in a targeted 1,3/1,6-linked polysaccharide form, the specific branching structure associated with immune cell receptor activation. It supports healthy immune function and may help maintain normal immune surveillance in adults looking to reinforce their body's natural defenses.

Why It's Worth Considering: The 1,3/1,6 linkage pattern is the research-relevant form, and NOW's GMP-certified manufacturing provides consistent potency at a practical daily dose.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Adults seeking beta-glucan support for daily immune readiness
  • Those looking to supplement beta-1,3/1,6-D-glucan alongside a wellness routine
  • Individuals supporting natural killer cell and macrophage activity with beta-glucan
  • Active adults wanting mushroom- and yeast-derived beta-glucan immune support

Considerations

  • Known allergy to any ingredient (check label)
  • Currently pregnant or breastfeeding (consult healthcare provider)
  • Taking prescription medications (check for interactions)
  • Under 18 years of age (unless recommended by pediatrician)
From across the web

Real reviews. A wider perspective.

Customer reviews, social conversations and expert insights, with every source in view.

Marketplaces & brand websites
Amazon, iHerb and direct brand reviews
Social & community
Reddit, X, Instagram and TikTok
Video & creators
YouTube and creator perspectives

Coverage varies by product and brand.

Good to know

A few useful answers.

Research & further reading

More category questions

How should I store this supplement?

Store in a cool, dry place away from direct sunlight. Most supplements are stable at room temperature (59-77°F). Keep the bottle sealed between uses. Check the label for any specific storage requirements — some probiotics and oils require refrigeration.

Can I take this with other supplements?

Most supplements can be taken together safely. However, some minerals compete for absorption (zinc and iron, calcium and magnesium) and should be taken at different times of day. If you're taking prescription medications, consult your healthcare provider about potential interactions.

How long should I take this supplement?

Most supplements benefit from consistent daily use over 2-3 months to achieve full effect. Some (like vitamins and minerals) can be taken indefinitely as part of a daily routine. Others (like specific herbs) may benefit from cycling. Follow the product's recommended protocol or consult a practitioner.

When is the best time to take this?

Fat-soluble supplements (vitamins A, D, E, K, omega-3, CoQ10) should be taken with a meal containing fat. Water-soluble supplements (B vitamins, vitamin C) can be taken anytime. Minerals are generally best absorbed with food. Probiotics should be taken with or just before a meal. Check the product label for specific timing recommendations.

How do I know if this supplement is working?

Track your specific health goals — energy levels, sleep quality, joint comfort, digestion, mood, etc. Most supplements take 2-8 weeks for noticeable effects. For objective measurement, baseline lab tests before starting (and repeat at 3 months) provide definitive evidence. The Gabriel Score incorporates clinical evidence for expected outcomes.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

NOW Foods - Beta-1,3/1,6 -D-Glucan 100mg