Celery Seed - a potent source of celery seed extract. Optimum support - 500mg celery seed in a single capsule. Improved product - now contains the same amount of celery seed in a single capsule (previously 2 capsules). Celery seed is naturally rich in alkaline elements, apiol and is a natural source of bio-available vitamins and minerals. It is a rich provider of vitamin K and is also a good source of vitamins A and C as well as folate, potassium and dietary fibre. Vegetarian and vegan. 30 Capsules - 30 days supply.