Foods or dietary supplements containing at least 400mg per serving of free phytosterols taken twice a day with meals for a daily total intake of at least 800mg, as part of a diet low in saturated fat and cholesterol, may reduce the risk of heart disease.A daily serving (2 tablets) of Sentry Cardio contains 800mg of plant phytosterols.Extended use of high levels of Vitamin A (excluding Beta Carotene as the source) may increase the risk to adults of developing osteoporosis.