Comparing E304I - Ascorbyl palmitate vs E307C - DL-Alpha-tocopherol
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Popular questions
Is ascorbyl palmitate safe?
Yes—it's approved as a food antioxidant in the EU, U.S., Canada, Australia, and New Zealand and is considered safe at permitted levels. The body breaks it down into vitamin C (ascorbic acid) and palmitic acid; high supplemental intakes may occasionally cause mild stomach upset.
What is ascorbyl palmitate in supplements?
A fat‑soluble form of vitamin C used either as the active vitamin C or to protect oils and softgels from oxidation. It’s hydrolyzed to ascorbic acid and palmitic acid, so its vitamin C activity is similar to regular vitamin C but it’s favored for oil‑based formulations.
What is ascorbyl palmitate made from?
It’s the ester of L‑ascorbic acid (vitamin C) and palmitic acid, typically derived from palm oil or other fats. It’s produced by chemical or enzymatic esterification; sources can be plant, animal, microbiological, or synthetic.
Ascorbyl palmitate what is it?
Ascorbyl palmitate (E304i) is a fat‑soluble ester of vitamin C used as an antioxidant in foods, especially those rich in fats. It helps slow oxidation and rancidity and can also act as a source of vitamin C.
What is ascorbyl palmitate used for?
Primarily as an antioxidant (E304) to prevent rancidity and preserve flavor and color in foods like oils, margarines, snacks, and baked goods. It’s also used in supplements to stabilize oil‑based ingredients and sometimes as a vitamin C source.
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.