Royal jelly contains various sugars, proteins, and medium-chain fatty acids and has demonstrated antioxidant and anti-inflammatory properties. Royal jelly was found to lower total, LDL-, and non-HDL cholesterol levels in subjects with type 2 diabetes in a meta-analysis of findings from 12 randomized controlled trials.¹ In a placebo-controlled trial in 40 subjects with mildly elevated cholesterol levels, 3,150 mg royal jelly daily resulted in an 11.5% reduction in total cholesterol levels and a 4.8% reduction in LDL-cholesterol levels.² In an eight-week placebo-controlled trial with 60 healthy overweight participants, 666 mg of royal jelly per day was found to lower total cholesterol levels and improve antioxidant status.³ A small controlled trial in 15 healthy volunteers found 6 grams of royal jelly per day for four weeks reduced total and LDL-cholesterol levels.⁴ In an uncontrolled trial, 36 healthy postmenopausal women received 150 mg of a high-potency royal jelly product daily for three months; at the end of the trial, HDL-cholesterol levels had increased by 7.7%, total cholesterol levels had decreased by 3.09 %, and LDL-cholesterol levels had decreased by 4.1%.⁵