Thai FDA gives strict rules about quntity of vitamines used in Dietary Supplement Products. In the table below the maximum daily dosage for viatmines in Thailand.
Source: Thai FDA
| Vitamin A , retinol, retinyl acetate, retinyl palmitate, beta-carotene | 800 μg RE |
| Vitamin B1, thiamin hydrochloride, thiamin mononitrate | 1.5 mg |
| Vitamin B2, riboflavin, riboflavin 5’-phosphate, sodium | 1.7 mg |
| Vitamin B6, pyridoxine hydrochloride, pyridoxine 5’-phosphate | 2 mg |
| Vitamin B12, cyanocobalamin, hydroxocobalamin | 2 μg |
| Vitamin C, L-ascorbic acid, sodium-L-ascorbate, calcium-L-ascorbate, potassium-L-ascorbate, L-ascorbyl 6-palmitate | 60 mg |
| Vitamin D, cholecalciferol, ergocalciferol | 5 μg |
| Vitamin E, D-alpha-tocopherol, DL-alpha-tocopherol,D-alpha-tocopheryl acetate, DL- alpha-tocopheryl acetate, D-alpha-tocopheryl acid succinate | 10mg α-TE |
| Vitamin K, phylloquinone | 80 μg |
| Niacin, nicotinic acid, nicotinamide, niacinamide | 20 mg NE |
| Pantothenic acid, D-pantothenate, calcium, D-pantothenate, sodium, dexpanthenol, calcium pantothenate | 6 mg |
| Folate, pteroylmonoglutamic acid, folic acid | 200 μg |
