Comparing E307C - DL-Alpha-tocopherol vs E321 - Butylated hydroxytoluene
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Popular questions
Dl alpha tocopherol which to take?
For supplements, natural RRR-alpha-tocopherol (d-alpha-tocopherol) provides higher bioactivity per mg than synthetic DL-alpha-tocopherol (dl-alpha-tocopherol). As a food additive, E307c is used mainly as an antioxidant rather than a preferred vitamin source.
How is dl alpha tocopherol absorbed?
It’s absorbed in the small intestine with dietary fat via bile salt–formed micelles, incorporated into chylomicrons, and transported through the lymph. The liver preferentially retains 2R stereoisomers (e.g., natural RRR-alpha-tocopherol), so synthetic DL forms are less well retained.
Is dl alpha tocopherol safe?
Yes—at permitted food-use levels it’s considered safe (e.g., GRAS/EU approved) as an antioxidant. Very high supplemental intakes can exceed tolerable upper intake levels and may increase bleeding risk, especially with anticoagulants.
Is dl-alpha tocopherol safe?
Yes; as a food additive (E307c) it is widely authorized and safe at typical levels. Excessive supplement doses can raise bleeding risk and interact with blood thinners, so stay within established upper intake limits.
What contains dl alpha tocopherol?
It’s commonly added to fat- and oil-rich foods to prevent rancidity—such as vegetable oils, spreads/margarine, baked goods, breakfast cereals, snacks, and nut or seed products—and it also appears in dietary supplements.
What is bht in food?
BHT (butylated hydroxytoluene, E321) is a synthetic antioxidant added in small amounts to keep fats and oils from oxidizing, helping foods stay fresh and resist rancidity.
Is bht bad for you?
Major regulators (FDA, EFSA, JECFA) consider BHT safe at permitted levels, with an acceptable daily intake around 0.25–0.3 mg/kg body weight/day. High doses in animal studies have caused liver/thyroid effects, but evidence of harm at normal food-use levels in humans is limited.
What is bht in cereal?
It’s an antioxidant preservative used to keep the cereal’s fats from going rancid; in some products it’s applied to the packaging liner rather than the cereal itself to help preserve freshness.
What is bha and bht?
BHA (E320, butylated hydroxyanisole) and BHT (E321, butylated hydroxytoluene) are synthetic antioxidants used to slow the oxidation of fats and oils in foods, helping preserve flavor and shelf life.
What is bht and why you should avoid it?
BHT is a synthetic antioxidant used to prevent rancidity and preserve freshness. It’s considered safe at regulated levels, but some people choose to avoid it due to its synthetic origin or concerns from high-dose animal studies.