Thorne Protein Optimizer

You hit your protein number every day, 120 grams, 130 grams, sometimes more on a big training day, and still feel flat two days after a hard session. What you eat and what your muscles get aren't the same thing, and the difference comes down to digestion, not intake.

Thorne's Protein Optimizer is designed to help your gut pull more usable amino acids out of every meal, pairing a five-strain probiotic blend with a shelf-stable Bacillus coagulans strain in one daily capsule.

More Amino Acids From the Protein You Already Eat – Instead of adding another protein source, this capsule helps your digestive system break down and absorb more of what you're already eating, so a bigger share of that post-workout shake or dinner chicken breast reaches your muscles.

Fewer Gut Issues During Heavy Training Blocks – High-protein diets put real stress on digestion, and this blend works alongside your body's own bacteria to ease the gas, bloating, and sluggish digestion that show up when training volume and protein intake both climb.

One Capsule That Travels With You – Both probiotic components are shelf-stable, so the capsule holds up in a gym bag or travel kit through a training camp or race week, unlike many probiotics that need refrigeration to stay effective.

The formula centers on two components working through the gut-muscle axis, the connection between digestive health and how well your body builds and repairs muscle tissue. The Mycohsa blend combines five organisms, including Saccharomyces boulardii along with strains of Lactobacillus and Bifidobacterium, plus a natural amylase enzyme for starch breakdown. Bacillus coagulans SNZ 1969 adds a spore-forming strain built to survive stomach acid and reach the intestine intact. Together the two blends deliver a minimum of three billion active cultures per capsule.

How to Use Protein Optimizer

Dose: One capsule daily with a meal.

Take it alongside the meal where you eat the most protein that day, like a post-workout shake or dinner, since that's when the digestive support has the most work to do.