There were no serious AEs, or withdrawals due to AEs, reported in either study4
Metamucil supplementation before meals was well-tolerated and significantly increased satiety by: 4
- > Increasing fullness
- > Decreasing hunger
- > Reducing the desire to eat between meals
**As part of a diet
††Scores averaged across all post-prandial measurement times and days were lower significantly or directionally (p ≤ 0.025 and p ≤ 0.052, respectively) for all psyllium doses vs. placebo.
4.Study 1: A single center, randomized, double-blind, placebo-controlled, 4-way cross-over study enrolled 30 healthy patients (19 men/11 women), 28 patients completed the study. Patients were randomized to 4 different groups: placebo and 3 different doses of psyllium fibre (3.4 g, 6.8 g, and 10.2 g) were taken before a controlled, regular breakfast and lunch. Patients spent 3 consecutive days in each group with a 4- to 5-day washout period between treatments. All patients received a single daily dose on their first day. The doses of 3.4 g and 6.8 g were given twice a day on the second and the third day. The dose of 10.2 g was given only once a day. All patients started the study receiving only 1 dose of psyllium fibre on the first day before breakfast to assess the potential impact of 3 single different doses on satiety responses. Three Satiety endpoints were self-assessed every half hour for a total of 19 per day: hunger and desire to eat on independent Visual Analog Scales (VAS) and hunger/fullness on the Satiety Labeled Intensity Magnitude (SLIM) scale. Study 2: A randomized, double-blind, placebo-controlled, 2-treatment, 3-period cross-over with a new group of patients. Forty-four healthy patients (25 men/19 women) were enrolled and 40 completed the study. Patients took 6.8 g of psyllium or placebo before receiving an energy-restricted breakfast. 6.8 g psyllium or placebo was given before lunch on days 1 & 2 but no dose before lunch on day 3. On each dosing day, patients consumed a breakfast providing an energy equivalent to 15%-20% of their estimated individual resting energy expenditure, but with the same proportions of carbohydrates, protein, and fibre as study 1 (50% carbohydrate, 34% fat, 16% protein). Satiety endpoints were assessed every 30 minutes by self-ratings of hunger and desire to eat on independent Visual Analog Scales (VAS) and hunger/fullness on the Satiety Labeled Intensity Magnitude (SLIM) scale.
References:1. Cicero AFG et al. Psyllium improves dyslipidaemia, hyperglycaemia and hypertension, while guar gum reduces body weight more rapidly in patients affected by metabolic syndrome following an AHA Step 2 diet. Meiterr J Nutr Metab. 2010;3:47–57. 4. Metamucil® Preparations product monograph. Procter & Gamble Canada.
2. Anderson JW et al. Long-term cholesterol-lowering effects of psyllium as an adjunct to diet therapy in the treatment of hypercholesterolemia. Am J Clin Nutr 2000;71(6):1433-8.
3. Anderson JW et al. Cholesterol lowering effects of psyllium intake adjunctive to diet therapy in men and women with hypercholesterolemia: meta-analysis of 8 controlled trials. Am J Clin Nutr 2000;71(2):472-9.
4. Brum JM et al. Satiety effects of psyllium in healthy volunteers. Appetite 2016;(105):27–36.
‡Among recommendations in ProVoice™ surveys 2015 to 2022 (OTC Bulk Fibre category).