For a cold sore, many adults use 1,000 mg daily for prevention or up to 3,000 mg short term, but speak with a clinician about safety.

One medium red tomato typically provides 3–7 mg of lycopene, with size, ripeness, and variety driving the swing.

No fixed lycopene dose changes skin color; small shifts appear in studies around 15–30 mg daily over 8–12 weeks.

No single lycopene dose guarantees lower PSA; studies often test 15–30 mg daily alongside medical care.

No set lycopene dose exists for prostate cancer; studies often used 10–30 mg daily from tomato products or capsules.

One large chicken egg delivers about 250 µg of lutein plus zeaxanthin, with nearly all of it in the yolk.

One large yolk usually delivers about 150–300 micrograms of lutein; hen feed, yolk size, and farming practices shift that range.

For eye health, many adults use 10 mg lutein with 2 mg zeaxanthin daily, taken with a meal.

A low pulse rate under 50 with blackout, chest pain, or breath trouble can be dangerous; seek urgent care if symptoms hit.

Most clinical formulas for AMD use 10 mg lutein per day, often paired with 2 mg zeaxanthin.