1. Packaged drinking water
Packed drinking water is good in traveling, but not always. Think about the quality of water you are getting and also the material used to make bottle. BPA and phthalates (phthalate esters, are esters of phthalic acid and are mainly used as plasticizers ,substances added to plastics to increase their flexibility, transparency, durability, and longevity) chemicals are used to make these bottles. These chemical are harmful to your health. Even small amount of these chemical cause problems like damage to brain, hyperactivity, and reproductive etc.
2. Ice tea mixes
Powdered ice tea mixes contain high fructose corn syrup, processed sugar and artificial flavors, which are not good for your body as it increases blood sugar level. It is best to prepare fresh ice tea at home and refrigerate, with or without sugar.
3. Black Tea
Drinking black tea in large doses can lead to digestive problems, varicose veins, insomnia and palpitations. It excites the nervous system .Strong tea is contraindicated in cases of gastritis and gastric ulcers; both occur against a backdrop of increased acidity.
4. Flavored water
Flavored water contain artificial sweeteners (such as aspartame or sucralose), vitamins etc. The higher consumption of artificial sweeteners often results in a weight gain over time. Different brands of flavored water add different vitamins. Some contain more than your daily allotment of vitamin C, others add B vitamins, and still others come fortified with calcium. Higher consumption of these vitamins could affect your body. It is better you to make your own flavored water at home.
5. Soy milk
Non-organic soy ingredients are genetically modified. During the soy milking processing process hexane is used which can lead to reproductive problems and birth defects. So it is best to use cow milk.
6. Fruit juices in tetra packs
During the packing process of juices sugar and preservatives are added to increase its taste and shelf-life. This added sugar and preservatives are not good for your health. So use fresh fruits for juice, which gives you the real taste of nature and fibres and are good for your digestive system.
7. Energy drinks
Energy drinks contain caffeine, people who do not normally drink much caffeine might have an exaggerated increase in blood pressure. Energy drinks may increase blood pressure and disturb your heart’s natural rhythm.
8. Soft Drinks
Soft drinks also contain large quantities of phosphorus, which when excreted pulls calcium out of the bones. Heavy users of soft drinks will have osteoporosis along with their damaged arteries." The relationship between soft drink consumption and body weight is so strong that researchers calculate that for each additional soda consumed, the risk of obesity increases by 1.6 times."
9. Milk in tetra packs
The milk is packed between five to six layers of cardboard, polythene and aluminum sheets. This is done to preserve the milk for a longer period of time. Tetra packs have been found to release chemicals into milk such as urea. And of course it is also simply not fresh.
10. Green Tea
Green tea reduce absorption of iron from the intestines. This can lead to iron deficiency anemia in some people. To prevent this side effect of drinking green tea, only drink an hour before or after meals so it won't block iron absorption from food. People who have anxiety problems, heart disease, high blood pressure, or an overactive thyroid should talk to their doctor before drinking it. It can also interact with some medications.