Daily How Much

For herpes, many adults use 500–1,000 mg daily for prevention and up to 3,000 mg a day short-term during outbreaks—talk to your clinician.

For cold sore flare-ups, many adults use 1,000 mg lysine 2–3 times daily for 3–5 days; between outbreaks, 500–1,000 mg daily is common.

Most adults use 500–1,000 mg of lysine per dose, with short-term single doses up to 2,000–3,000 mg tolerated in studies.

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.