AG1 is a greens powder that comes as a 12-gram scoop you mix into water and drink, ideally first thing in the morning on an empty stomach. That’s the short version. Here’s everything you need to know to get the most out of each serving.
How to Mix a Serving
One serving is a single level scoop, which works out to 12 grams, roughly the size of a tablespoon. Mix it into 8 ounces (one cup) of cold water. Cold water matters here because it makes the taste more palatable and avoids exposing the live probiotics to heat. Stir or shake it until the powder fully dissolves. If you’re using a glass rather than a shaker bottle, a small whisk or spoon works fine, but clumps can linger at the bottom, so a shaker bottle with a wire ball tends to give a smoother result.
You can also blend AG1 into a smoothie. Oat milk, frozen fruit, and nut butters all pair well with the earthy, slightly sweet flavor. The one thing to avoid is mixing it into hot liquids like coffee or tea, since heat can damage the probiotics and degrade some of the heat-sensitive vitamins.
When to Take It
The manufacturer recommends taking AG1 first thing in the morning on an empty stomach for optimal absorption. The logic is straightforward: without other food competing for your digestive system’s attention, your body can absorb the vitamins, minerals, and probiotics more efficiently. Most regular users treat it like the first step in their morning routine, drinking it before breakfast or coffee.
If taking it on a completely empty stomach causes mild nausea, having it alongside a light breakfast is a reasonable compromise. The difference in absorption isn’t dramatic enough to skip it altogether just because you’ve already eaten.
What to Expect in the First Week
AG1 contains probiotics from the Lactobacillus and Bifidobacterium families, which are among the most widely studied probiotic strains. A clinical trial published in the Journal of the International Society of Sports Nutrition found that AG1 supplementation enriched beneficial gut bacteria, including Lactobacillus acidophilus and Bifidobacterium bifidum. That’s generally a good thing, but introducing new probiotics can cause temporary digestive adjustment.
Some people experience mild bloating, gas, or changes in bowel habits during the first few days. This typically settles within a week as your gut microbiome adapts. If the effects bother you, try starting with half a scoop for the first three to four days and working up to a full serving.
Storage After Opening
AG1 must be refrigerated after you open the pouch. Because the formula contains live probiotics and whole-food-sourced ingredients, leaving it at room temperature degrades both the potency of the probiotics and the stability of certain nutrients. Keep the pouch sealed tightly in your refrigerator between uses. If you’re traveling, the brand sells single-serving travel packs that don’t require refrigeration until they’re mixed.
Who Should Be Cautious
AG1 contains vitamin K, which plays a direct role in blood clotting. If you take a blood-thinning medication like warfarin, this matters. Warfarin works within a narrow therapeutic range, and changes in daily vitamin K intake can shift how effectively the medication works. Too much vitamin K can reduce the drug’s anticoagulant effect, while inconsistent intake can make your blood clotting levels unpredictable. Anyone on blood thinners should talk to their prescribing doctor before adding AG1 or any greens supplement to their routine.
The product is NSF Certified for Sport, which means it’s been independently tested and verified to contain what the label says, free of banned substances. That certification is primarily relevant to competitive athletes subject to drug testing, but it also provides a layer of quality assurance for general consumers.
What It Costs
A single 30-serving pouch costs $99 as a one-time purchase, which breaks down to $3.30 per serving. A monthly subscription drops the price to $79 per month, or $2.63 per serving. Travel packs run slightly higher: $109 for 30 packs one-time ($3.63 per serving) or $89 on subscription ($2.97 per serving). The subscription ships automatically each month and can be paused or canceled.
At roughly $2.63 to $3.30 a day, AG1 sits at the premium end of the greens powder market. Whether that’s worth it depends on how many individual supplements it replaces for you. The formula covers a multivitamin, probiotics, digestive enzymes, and several adaptogens in a single scoop, so if you’re currently buying those separately, the math can work in its favor.