Taken with meals

Seeking Health Lactase Drops

Liquid lactase added to milk a day ahead, so the lactose is gone before you drink it.

Format: Liquid
Type: Digestive enzyme
Cost: $0.46 a day
Customer rating: 4.4 out of 5 from 1,835 ratings from Amazon

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What customers consistently report

Drinking ordinary milk again without the aftermath
Making home-treated milk for a fraction of the price of lactose-free cartons
Working on cottage cheese and cream as well as milk

Those are the themes that recur across the reviews. High review confidence — 4.4 from 1,835 Amazon ratings.

Why it might work

Lactase breaks the milk sugar lactose into glucose and galactose, which the small intestine absorbs easily. Added to milk and left in the fridge for 24 hours, the enzyme finishes the job before the milk is drunk, so nothing reaches the colon to ferment. That is the same principle as a lactase caplet taken with food, done in advance and more completely, at the cost of planning ahead.

What the research supports

Ingredient-level evidence with a long history. Lactase splits lactose into glucose and galactose, and lactase-treated milk is the basis of every lactose-free milk on the market; controlled studies since the 1980s show lactose-intolerant people tolerate pre-treated milk with far less breath hydrogen and fewer symptoms. A placebo-controlled crossover trial of lactase tablets taken with a lactose load cut breath hydrogen by 55%. No trial of this drop product was found; the mechanism is the same.

What the label discloses

The serving is 750 lactase units in a glycerin and water base, seven drops per pint of milk, 52 servings per bottle. The enzyme source is not named on the listing. No third-party testing certificate or allergen statement is on the listing.

Who this tends to suit

We match this product to people reporting symptoms that follow particular foods, bloating, gas and loose stools. It fits someone whose priority is handling meals or day-to-day comfort. Whether it is the best fit for you depends on the rest of your answers — what you have already tried, what format you will take, and anything that has to be ruled out.

Where it may not fit

The label supports gluten-free, no added sweeteners and minimal ingredient list. A liquid only works if you will take it as often as the label directs.

Side effects and what to be aware of

It treats the milk, not the meal: the drops need 24 hours in the fridge to do their work, so they do nothing for a latte ordered out. Treated milk tastes sweeter, because lactose has been split into simpler sugars. The bottle is small for the price and a minority say it did not work for them, usually when the milk was not left long enough.

Buy it at iHerb

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