Will carrying 2 KG of protein powder in check-in baggage cause issues with customs or airline security in Thailand?

Carrying 2 KG of protein powder in check-in baggage when flying on Thai Airways is generally acceptable with little concern for problems with customs or airline security. Many commenters suggest that protein powder is widely available in Thailand, encouraging travelers to consider purchasing it locally instead. Some noted experiences indicate that while customs may swab test the item, they have never faced issues bringing protein powder into the country. However, it's wise to keep it in its original, unopened packaging to avoid complications. The general consensus is that travelers should not worry excessively, but they may also find protein supplements to be more expensive in Thailand.