Amino acid benefits are simple to name because, without amino acids, we cannot
exist. Every anatomical and physiological feature of a living organism is made
possible through the existence of amino acids.
The nine essential amino acids are histidine, isoleucine, leucine, lysine, methionine,
phenylalanine, threonine, tryptophan, and valine.

Isoleucine is one of three branched-chain amino acids (BCAAs). It helps to increase
the rate of protein synthesis and promotes muscle tissue formation.
Histidine is a precursor to various hormones and metabolites important
to kidney function, gastric secretion, the immune system, and neurotransmission. It
helps to produce red blood cells and hemoglobin.
Lysine has an important part to play in cell division and growth as it is a major
building block of growth factors.
Methionine contains the element sulfur which is essential
to cartilage and liver health and ameliorates hair structure and nail strength. 
Phenylalanine is a precursor of tyrosine hydroxylase, an enzyme that speeds up
catecholamine synthesis and so affects mood.
Threonine increases the uptake of other amino acids such as phenylalanine but also
contributes to neurotransmitter balance in the brain, muscle tissue production, and
immune system function.
Tryptophan is a precursor molecule of niacin (vitamin B3), melatonin and serotonin
and thus essential for sleep and mood.

 Folic acid deficiency
 Chills,
 Fever,
 Flushing (sense of warmth in the face, ears, neck and trunk)

 Increased sweating
 Metabolic disorder
 Vomiting
 Liver damage

Essential amino acids cannot be made by the body. As a result, they must come from
food.
Take extra caution in patients with the following medical conditions:
Severe acidosis
Congestive heart failure

• Chondroitin sulfate is a chemical that is normally found in cartilage around joints in the body. Chondroitin sulfate is usually manufactured from animal sources, such as shark and cow cartilage.
• It is often used in combination with other ingredients, including manganese ascorbate, glucosamine sulfate, glucosamine hydrochloride, or N-acetyl glucosamine.

• Chondroitin is used for osteoarthritis.  
• Chondroitin sulfate is also taken by mouth for HIV/AIDS, heart disease, heart attack, weak bones (osteoporosis), joint paincaused by drugs used to treat breast cancer, acid reflux, high cholesterol, muscle soreness after exercise, a bladder condition called interstitial cystitis, a bone disease called Kashin-Beck disease, and itchy and scaly skin (psoriasis). Chondroitin sulfate is also used in a complex with iron for treating iron-deficiency anemia.
   

•  Rash,
•  Headache,
•  Diarrhea,
•  Upset stomach,
•  Flatulence

Do not take chondroitin and consult your doctor:

•  If you have allergies, asthma, or prostate cancer.
•  If you have bleeding disorders or diabetes.
•  If you are taking blood thinners.
•  If you are pregnant or breastfeeding.

Glucosamine is a proteoglycan synthesis stimulator which relieves osteoarthritis symptoms. It helps in the formation of cartilage (the soft tissue that cushions the joints) and keep the joints lubricated for better movement and flexibility.
 

•  Glucosamine sulfate are often used as natural remedies for osteoarthritis.
• Glucosamine sulfate can help control osteoarthritis by protecting against the breakdown of cartilage. 
• Glucosamine is touted as a natural remedy for interstitial cystitis, temporomandibular joint disorder, and glaucoma.

•  bloating
•  constipation
•  diarrhea
•  gas
•  heartburn
•  indigestion
•  nausea
•  stomach upset

In rare cases, use of glucosamine may cause such side effects as drowsiness, skin
reactions, vomiting, headache, elevated blood pressure and heart rate, and
palpitations.

•  Do not take glucosamine, if you are allergic to glucosamine or shell fish.
•  Avoid taking glucosamine, if you are pregnant or breast feeding.
•  Doctor’s advice should be considered in case of patients with following history of disease conditions: diabetes; high cholesterol or triglycerides; cancer; liver disease; asthma or breathing disorder.
•  Do not continue the glucosamine, if you are having surgery.

Collagen Peptide is a proteoglycan synthesis stimulator. It works by building cartilage (soft connective tissue around the joints) leading to joint repair. It also lowers pain and inflammation (swelling). It is responsible for several biological functions, one of which is to provide structural support in connective tissue, muscle, and skin.

 

•  Collagen Peptide is used for osteoarthritis. Collagen supplements helps promote joint health and potentially restore some bone density.
•  Collagen makes up a significant amount of bone structure and helps keep thebones strong.
•  Collagen is the protein responsible for skin elasticity, reducing wrinkles andadding moisture to the skin.
•  They are also used for brittle nails and muscle strength.

 Taking collagen supplements may also help support a healthy cardiovascularsystem.
 Some other potential things that collagen may help with include:

•  maintaining a healthy gut
•  maintaining a healthy weight
•  reducing anxiety
•  improving mood
•  promoting healthy nail and hair growth

•  diarrhea
•  a general feeling of heaviness in the stomach
•  rashes

Collagen Peptide is possibly safe, with very none or very mild side effects. Not enough is known about the safety of collagen peptides when used in medicinal amounts during pregnancy and breastfeeding. Stay on the safe side and avoid use.