Question lang. sino nakaka alam dito bakit nakalagay ang "No approved therapeutic effects" 
Yun totoo ha, hindi un galing lang sa bibig nila. Yun main reason bakit nilalagay yan sa mga products
Food and medicines undergo a "rigorous" testing and approval phase through the FDA (formerly the BFAD). This is a long and arduous process especially with medicines to make sure that the medicinal properties are thoroughly documented and tested and is safe for human consumption. Certain products, especially food supplements, forego this process but still goes through the FDA for approval. So as long as the products have no ill-effects and are labeled as "food supplements" and not "medicine" based on their ingredients they can pass through with "no approved therapeutic claim," meaning, the FDA has no blessing with regards to the veracity of the effectiveness of the product's claim.
Like the examples given by isnew, you can differentiate what is medicine and what is supplement mainly by their availability. Medicines cannot be sold without a licensed pharmacist on board. So, if the product with lavish claims is being sold to you by someone you know whom is not licensed to sell medicines, always check the label.
Note: Pharmacists are by law not allowed to endorsed products. Doctors, however, can.
